MCQ 1: The water which enters the xylem cells, increase cell's
MCQ 2: The male copulatory organ used to transfer the sperms into the female reproductive tract is called
MCQ 3: In western civilization, thromboembolism may lead to
MCQ 4: The organization of photosynthetic pigments into clusters is
MCQ 5: The inner semi-fluid of the invertebral disc is
MCQ 6: Chlorophylls are soluble in
MCQ 7: A compound which is found in all living cells and play a key role in energy transformations is
MCQ 8: Lipids provide insulation against cold and hot weather to the exoskeleton of insects in the form of
MCQ 9: Tobacco pipes are made from the wood of
MCQ 10: Freezing temperatures form ice crystals within protoplasm, perforates membranes and organelles, eventually, the cell is
MCQ 11: Chitinous Setae are the locomotory organs of annelids which are present on
MCQ 12: The outer layer of the adrenal gland is called
MCQ 13: The small intestine is composed of
MCQ 14: The name of antibiotic which is used to lower blood cholesterol made by fungi is
MCQ 15: The dome-shaped part under the chest is called
MCQ 16: Evolutionary changes help in producing new
MCQ 17: On hydrolysis, sucrose gives one glucose and one
MCQ 18: The respiration which takes place during day time is called
MCQ 19: The tubular system opens to the exterior through several
MCQ 20: The animals which have both the features of mammals and reptiles together include
MCQ 21: The plants which produce seeds are termed as
MCQ 22: Uterus opens into the vagina through
MCQ 23: Tiny thin-walled ducts which are present in the lungs of birds are called
MCQ 24: Germinating pollen grain is a rich source of
MCQ 25: The patients who are suffering from ulcer should avoid
MCQ 26: The larval epidermis is produced by
MCQ 27: The egg and male gametes fuse to develop into an embryo and endosperm nucleus by the process
MCQ 28: The response of passive immunity is
MCQ 29: The placenta passes out through the vagina
MCQ 30: Groups of sporangia are found on the underside of reflexed lobes of margins of leaflets and protected by a bent margin of the leaflet is called
MCQ 31: The heart of an amphibian has three chambers which are
MCQ 32: In humans' ciliated epithelium, mucous membrane filter foreign particles to enter in
MCQ 33: Death or mental retardation takes place if accumulation happens in
MCQ 34: There is a thick layer of insulating fat in whales and seals which protects them from colder water, this layer is known as
MCQ 35: When an impulse reaches a synaptic knob, synaptic vesicles fuse with the
MCQ 36: In obese patients, the fat is stored in tissues called
MCQ 37: The signs of aging include which of the following?
MCQ 38: The rate of growth stops and plants die at a temperature of
MCQ 39: Identical gametes are also known as
MCQ 40: Hemorrhage occurs when the walls of arteries become hard and lose their
MCQ 41: A large and important group of a compound which can be made by the repetition of simple isoprenoid units is called
MCQ 42: The thick secretions which cover inside of the stomach are called
MCQ 43: The scientist who first isolated nuclei of pus cells were
MCQ 44: When an early embryo or single egg divides into one or more separate embryos, it gives birth to
MCQ 45: The joints which are held together by fibers of connective tissue are called
MCQ 46: Male gametes of bryophyte plant are called
MCQ 47: The main transmitter for synapses that lie outside the central nervous system is
MCQ 48: Tetroses are not very common, they are found rare in nature and few
MCQ 49: The medulla of adrenals produces the hormone
MCQ 50: Chlorophyll converts light energy into
MCQ 51: NAD is an abbreviation for
MCQ 52: The extensive convoluted part of Bowman's capsule is called
MCQ 53: In reproduction, Vernalin hormone resembles
MCQ 54: Weed killing is done by which chemical?
MCQ 55: Water molds are another name of
MCQ 56: Gastrin is the hormone produced by the mucosa of the pyloric region of the
MCQ 57: A protein which acts as a carrier and transport oxygen and carbon dioxide in the human body is known as
MCQ 58: Inside the neuron, the membrane is made more negative by
MCQ 59: The formation of thrombus in the heart can lead to
MCQ 60: The lining of the duodenum releases enzyme called
MCQ 61: The original volume of the cell wall is restored after the removal of
MCQ 62: If two different types of individuals structurally or functionally occur in the same organism, this condition is called
MCQ 63: In kingdom Animalia, Neiris belong to the class
MCQ 64: Water molecules move rapidly hence possess
MCQ 65: Secondary tissue is added by the
MCQ 66: Prothrombin protein acts as a catalyst and help in blood
MCQ 67: A nerve impulse is passed from one neuron to the other through
MCQ 68: The plants which have been infused foreign DNA into their cells are
MCQ 69: Photosynthesis is the process in which inorganic compounds are reduced to organic compounds using
MCQ 70: Viruses which infect bacteria are called
MCQ 71: The animals of division Radiata are
MCQ 72: In growth and development, Stage one in differentiation involves
MCQ 73: The sympathetic nervous system is associated with
MCQ 74: The greater the number of carbon atoms in chain results in the higher
MCQ 75: The effect of auxin diffusing from the apical bud on the lateral shoots is known as
MCQ 76: The lobe of pituitary often referred to as the master gland, is the
MCQ 77: Secondary spermatocytes and spermatids are formed by a meiotic division in
MCQ 78: The immunity which is achieved by the introduction of antigen artificially in the body is called
MCQ 79: The central cavity of the kidneys is known as
MCQ 80: A degenerative arterial change which is associated with advancing age is called
MCQ 81: The anterior end of the neural groove forms the future
MCQ 82: Blastula stage is characterized by the presence of
MCQ 83: For terrestrial adaptation, Bryophytes form a special structure to absorb water is known as
MCQ 84: The detoxification of ammonia to citrulline requires the precursor of
MCQ 85: The mesoderm is derived from wall of developing gut (archenteron) in the series
MCQ 86: Bony fishes have a brain which is composed of 10 pains of
MCQ 87: The most common chronic arthritis which degenerates joints is
MCQ 88: Hypothalamus is a part of
MCQ 89: The lower jaw of mammals is composed of only one
MCQ 90: The secondary growth in the plant, girth due to
MCQ 91: Bilobed-mass composed of two ganglia are present in the body of
MCQ 92: The body of mammals is covered by
MCQ 93: In growth and development, Blastoderm splits during
MCQ 94: The normal flow of blood is facilitated by the muscular activity of
MCQ 95: Tracheid are found in xylem as
MCQ 96: Elevated temperatures damage metabolism by denaturing
MCQ 97: The leaf which is large and with divided vein and veinlets with expanded lamina is called
MCQ 98: Renal retention of salts and water lead to the disease
MCQ 99: The bile secretion of the liver helps in emulsifying fats in
MCQ 100: The anterior end of the primitive streak is occupied by
MCQ 101: In a normal human being, the number of chromosomes is
MCQ 102: The subunits of the capsid are called
MCQ 103: Some fungi are poisonous such as death angel (amanita) and Jack-o' lantern mushroom, they are termed as
MCQ 104: An organism which can prepare their food is called
MCQ 105: In reproduction, Vernalisation is induced by the hormone
MCQ 106: In brassica, rose and mango plants, the stomata open and close according to availability of
MCQ 107: The most unusual protist phyla are
MCQ 108: The number of nucleotide in a tRNA chain length is
MCQ 109: Whisk Ferns belong to the group called
MCQ 110: The respiration at the organism level is known as
MCQ 111: If a lobster loses its pincer claw it
MCQ 112: When the fungal hyphae extend into the soil and penetrate the outer cells of plant root while forming the branches are a type of
MCQ 113: In rats, the ability to withstand any stress situation such as a cold is diminished, if following is removed
MCQ 114: The phase in which the death rate is equal to the reproduction and multiplication rate is
MCQ 115: The suspended tubular structures which collect excretory products from hemolymph are called
MCQ 116: The measure of capacity to do electrical work is called
MCQ 117: Cnidarians and annelids have which type of skeleton?
MCQ 118: T-lymphocytes fails the immune system making the individual vulnerable to all other
MCQ 119: Diffused type nervous system is present in
MCQ 120: The blood of chronic kidney failed patient is purified by passing it through
MCQ 121: Degeneration of cartilage gives rise to
MCQ 122: The length of axon may be more than
MCQ 123: Virus depend on other plants and animals for its synthesis, that's why it is known as
MCQ 124: The yellowing of the plants is due to the absence of
MCQ 125: An antibiotic can discolor the teeth of young children permanently is
MCQ 126: Apical meristems are found at the tips of
MCQ 127: Lub' sound is produced when tricuspid and bicuspid valves are
MCQ 128: The cleavage in which planes of cleavage are symmetrical to the polar axis and produce tiers of cells is radial and
MCQ 129: The plants which feed on small insects and organic compounds are called
MCQ 130: Aflatoxins are the most carcinogenic toxins which are produced by
MCQ 131: Na+ diffusion into the neuron causes its membrane to undergo
MCQ 132: The virus which is responsible for AIDS is typically known as
MCQ 133: The network of closed tubules without internal openings are called
MCQ 134: The transpiration is very essential for plants as it helps plants to
MCQ 135: The proteins which are synthesized by blood to protect the body from nucleic acids and toxins of invading organism
MCQ 136: The twins which are produced asexually are
MCQ 137: The nuclear fusion in basidium Is done by the process of
MCQ 138: The arginine is split to form urea by the enzyme activity of
MCQ 139: Distention of cervix stimulates the release of
MCQ 140: There are four bands of muscles in Nematodes, two are dorsolateral and two
MCQ 141: Bacteria which obtain their food from dead organic matter called
MCQ 142: An average of 15-50% of the world's food is destroyed each year due to the attack of
MCQ 143: The smallest contractile unit of muscle fiber is
MCQ 144: Cranial nerves also known as cerebral nerves arise from the
MCQ 145: The ureter of both kidneys pour the urine in to
MCQ 146: The meaning of the word Cephalo is
MCQ 147: Pigments containing bodies which are bounded by the membrane are called
MCQ 148: Muscle cells are produced by which cytoplasm?
MCQ 149: Ustilago species of Fungi are the most common example of
MCQ 150: The main sources of carbohydrates are
MCQ 151: Double circuit heart is present in
MCQ 152: In the natural process, the sporophyte undergoes fertilization which provides a large amount of genetic
MCQ 153: The water is evaporated from the plant through
MCQ 154: Many of the sensory stimuli of the nervous system are converted into hormonal responses in
MCQ 155: The protection of the internal environment from the harms by the external environment is termed as
MCQ 156: A bridge of nerve fibers which connects the two cerebral hemispheres is called
MCQ 157: Ecological importance in terms of bio indicators of pollution is the attribute of
MCQ 158: Biologists believe that mammals have been evolved from their reptilian ancestors they
MCQ 159: African sleeping sickness is caused by a human parasite called
MCQ 160: The evolution fusion of vascular strands given rise to a pattern called
MCQ 161: The multicellular haploid gametophytic generation alternates with the multicellular diploid sporophytic generation. This cycle is called
MCQ 162: Roots response towards gravity is the display of
MCQ 163: Melanophore stimulating hormone (MSH) is secreted by which lobe of pituitary?
MCQ 164: Their evolutional developmental shows regular
MCQ 165: The tail attached to the pyrrole ring is called
MCQ 166: More than 90% of families of flowering plants have
MCQ 167: The receptors for smell, taste and for blood Oxygen, etc. are
MCQ 168: Red blood cells are also called
MCQ 169: In Ascent of Sap, water and dissolved minerals are taken up by leaves through
MCQ 170: Multiple fission is a characteristic reproduction mechanism in
MCQ 171: When rod-shaped bacteria appears to be in pair arrangement it is termed as
MCQ 172: Generations reproduced sexually and asexually in coelenterates, are
MCQ 173: The archegonium consists of a neck and a
MCQ 174: Release of corticotrophin-releasing factor is controlled by nervous stimulation of hypothalamus as a result of
MCQ 175: Annelids have a specialized structure for excretion called
MCQ 176: Bacteria have single chromosome, this means they are
MCQ 177: A very dormant and thick-walled structure which is produced by direct fusion of hyphae is called
MCQ 178: In the absence of a male gamete in plants, a diploid cell of ovule develops into a functional embryo through the process of
MCQ 179: Bud initiation in shoots in promoted by
MCQ 180: Chlorophyll (a) can absorb the wavelength of light
MCQ 181: Menstruation stage lasts for about
MCQ 182: In plants, the detection of either light or darkness is the responsibility of
MCQ 183: A thin flexible spiral is known as a spirochete
MCQ 184: The movement of stomata are maintained by
MCQ 185: The no. of pairs of cranial nerves in humans is
MCQ 186: If the division of cell takes place in three planes it will produce a cube of 8 cocci which is named as
MCQ 187: Excessive rapid electric discharge in the gray matter occurs in
MCQ 188: Incipient plasmolysis is the stage when plasmolysis
MCQ 189: The sequence of amino acids in DNA can be determined by the order of
MCQ 190: In the presence of hypo osmotic body fluids, the inhibition occurs in the production of the hormone
MCQ 191: Amphibians are poikilothermic, therefore they use to hibernate in
MCQ 192: In the word Lysosoma, 'lyso' means splitting and 'soma' means
MCQ 193: Production of leaves and flowers is due to
MCQ 194: An internal factor that influences growth in plants is
MCQ 195: The embryo of Taenia is inside the egg and contain a chitinous hook that is in number
MCQ 196: The major source of high protein food and oil are the special feature of the plant, that belong to
MCQ 197: The glycolate is converted into glycine within
MCQ 198: Pseudopodia is the specialized cytoplasmic projections which are the attribute of
MCQ 199: An example of marine colonial that exhibits alternation of generations is
MCQ 200: The number of capsid in a virus of the common cold is
MCQ 201: Phagocytosed food is digested with the help of enzymes which are present in
MCQ 202: The lysosomes which eat the parts of their cell in a state of starvation are called
MCQ 203: In a coordination system, Endocrine glands are
MCQ 204: The directed movements either towards or away from a stimulus are called
MCQ 205: Thyroxine hormone belongs to the family
MCQ 206: Way of removing pollutants or toxic waste from the environment with the help of living organisms is called
MCQ 207: In the restricted supply of water, the principal function of the body is to conserve
MCQ 208: The outer covering of vacuole is called
MCQ 209: Phosphoric acid can be joined with the OH group of a pentose sugar with the help of
MCQ 210: The shape of poliovirus is
MCQ 211: Proteins are classified into two groups, i.e. Fibrous proteins and
MCQ 212: In plants, which of the following are large and conspicuous?
MCQ 213: The scientist who studies fungi are called
MCQ 214: A single mycelium is capable of producing new hyphae in only one day which is up to a
MCQ 215: In the animal kingdom types of the nervous system are
MCQ 216: Substances are allowed to pass through the cell membrane to maintain a constant
MCQ 217: Receptors which produce the sensation of pain are
MCQ 218: Synthesis of cytoplasm and cell wall material takes place during
MCQ 219: The internal lining of the uterus wall is called
MCQ 220: The sudden physical trauma to the spine while bending or lifting heavy weight can lead to
MCQ 221: The juxtamedullary nephrons are specialized for the production of
MCQ 222: RNA is synthesized from DNA by the process of
MCQ 223: In Lily and Maize, the stomata are present in
MCQ 224: Diabetes insipidus is caused by a lack of
MCQ 225: If the kidney is completely lost and unable to eliminate nitrogenous waste, it leads to
MCQ 226: The hard yellow plaque of lipoid which is found in the innermost layer of the arteries is called
MCQ 227: Acetabularia is a kind of which?
MCQ 228: The oxygen which is released during the process of photosynthesis comes from
MCQ 229: The floral characteristics of flower in Solanaceae are
MCQ 230: Light exerts its influence on living organisms through variations in day length called
MCQ 231: The detection of vibration of the ground by terrestrial vertebrates is because of the receptors in
MCQ 232: Fibers from the eyes terminate in which part of the brain?
MCQ 233: The cervical vertebrae are 7 in number and lie in the region of
MCQ 234: During the breeding condition, a male three-spined stickleback fish has a
MCQ 235: The phenomena that some cells evoke a specific developmental response in other cells is
MCQ 236: The notochord is one of the few prominent structural features in the chick embryo of about
MCQ 237: The numerous small branches which end blindly in the body of planarian are called
MCQ 238: Fluid Mosaic Model favors that cell membrane contains proteins which are embedded in the fashion of
MCQ 239: Egg or oosphere is found bedded in a cushion of the thallus in
MCQ 240: The phases of the Calvin cycle involves
MCQ 241: Acetabularia Mediterranea has a cap of
MCQ 242: The ribs are elevated when the muscles between ribs are
MCQ 243: Steep diffusion gradient is maintained by
MCQ 244: Anabolism and catabolism are the types of
MCQ 245: The skeleton of sponges is composed of needle-like structures called
MCQ 246: The disease of vascular lesions in the epithelial layers of ectodermal tissues are formed in mouth or skin is known as
MCQ 247: The end or complete stop of the menstrual cycle is called
MCQ 248: The major constituent of hemoglobin receives iron from
MCQ 249: The clock in a plant for measuring the duration of darkness is provided by the rate of conversion of
MCQ 250: A person who forgets the name of a neighbor who visits daily might be suffering from
MCQ 251: Growth of multicellular plant is divided into
MCQ 252: Another vital function of cambium cork is the formation of tissues over a wound called
MCQ 253: Tasmania wolf found in Australia belong to the class Metatheria and termed as
MCQ 254: Flagellates which are found in the gut of termite and digest dry wood are called
MCQ 255: The glandular epithelial envelope which secretes calcareous shell is called
MCQ 256: Majority of bacteria possesses a unique macromolecule known as
MCQ 257: The special organelle which plays an important role in the regulation of water in freshwater ciliates is called
MCQ 258: In plants, growth and development involve
MCQ 259: The chemical composition of an acylglycerol is esters of fatty acids and
MCQ 260: The digestive system of nematodes have two openings and in the form of
MCQ 261: The weight of the kidney concerning the total mass of the body is by
MCQ 262: Absence of a centralized nervous system in hydra is because of
MCQ 263: Bacteria which lack flagella is known as
MCQ 264: Special hyphal tips which absorb nutrients from the host in parasitic fungi are called
MCQ 265: The sensory receptors of the exoskeleton are called as
MCQ 266: In photosynthesis carbon dioxide, light and water are
MCQ 267: Medicago Sativa Alfalfa is one of the world's best forage crop for
MCQ 268: Clitoria Ternatea is used against
MCQ 269: The chains of cells which are surrounded by the mucilaginous sheet are called
MCQ 270: The microorganisms secrete an enzyme which helps in the digestion of cellulose known as
MCQ 271: The synthesis and maturation of phage along with the release of new phages constitutes the cycle called
MCQ 272: The derivatives of phosphatidic acid, which are composed of glycerol, fatty acids, and phosphoric acids are known as
MCQ 273: Somites are compact cell masses lying immediately lateral to
MCQ 274: The regional temperature differences within an animal are obtained by
MCQ 275: Enzyme activity can be blocked or retarded on a minute disturbance in
MCQ 276: Euglena and Amoeba belongs to the kingdom
MCQ 277: The mesoderm cells migrate medially and caudally from both sides and create a midline thickening called
MCQ 278: The major difference between animal and plant is in their
MCQ 279: There is no genetically engineered vaccine available for
MCQ 280: The short narrow tube inside the body of cockroach is called
MCQ 281: The function of detoxifying harmful drugs from the body is done by
MCQ 282: A complex of interactions of reactions involving elements and molecules constitutes a
MCQ 283: The serum which contains antibodies is called
MCQ 284: Experience has an obvious influence on the
MCQ 285: The exchange of gases in leaves is accelerated by the wet surfaces of
MCQ 286: The digestive system of sharks and rays is
MCQ 287: Ringworm and skin diseases can be cured with the help of leaves of
MCQ 288: Certain very precise environmental cues are required for
MCQ 289: Four postulates were given by Robert Koch in the
MCQ 290: The membrane potential of a non-conducting or resting neuron is
MCQ 291: In reproduction, Amniotic sac is filled with fluid for
MCQ 292: The plant's body which is composed of a large number of ridges and furrows along with a rough stem is
MCQ 293: Smooth muscles are not under
MCQ 294: The conducting tissues which help in transportation are
MCQ 295: The homeostatic thermostat which facilitates the process of thermoregulation in man is present in
MCQ 296: The ammonia is converted into the less toxic product in the restricted supply of water which is
MCQ 297: In chick, the shell of the egg is secreted as the egg passes through the
MCQ 298: Maurice Wilkins and Rosalind Franklin determine the structure of DNA using a technique called
MCQ 299: The capacity of lungs while sleeping for gaseous exchange is
MCQ 300: The marginal area of the blastoderm in which the cells remain undetached from the yolk is called
MCQ 301: Zea mays and corns belong to the family name
MCQ 302: In hyponasty, the bud will remain
MCQ 303: The special ring of the muscle which is present between esophagus and stomach is called
MCQ 304: The finger-like process which has a blind end in the caecum is called
MCQ 305: The blood of arthropods is colorless due to lack of
MCQ 306: Oxygenated blood is never received by the heart of
MCQ 307: Hormone production is a function related to
MCQ 308: Messages from the central nervous system to effector is transferred through
MCQ 309: Follicle Stimulating Hormone (FSH) stimulates the development of
MCQ 310: Lipids which are fats and oils are lighter than water, therefore, have a specific gravity of about
MCQ 311: Secretin is produced from which one of the following?
MCQ 312: The protection against sudden thermal change is carried out by the help of
MCQ 313: The nitrogenous wastes are in the form of
MCQ 314: After fertilization, the ovule is called a
MCQ 315: Blood is sometimes retained in the heart or lungs due to malfunctioning activity of heart-pumping which can lead to fatal condition is called
MCQ 316: A harmful molluscum which is injurious to gardens and cultivations is termed as
MCQ 317: Apical meristems play an important role in
MCQ 318: Cell elongation is retarded by
MCQ 319: Spemann performed experiments to understand the concept of
MCQ 320: Amino acids are composed of
MCQ 321: Temperature and concentration of salts and water is retained in
MCQ 322: In kingdom Animalia, Daphnia belongs to the class
MCQ 323: Virus synthesizes its self and then transfer itself by using biosynthetic machinery of
MCQ 324: The most abundant carbohydrate which is found in nature is
MCQ 325: Fats are solid due to the presence of
MCQ 326: RuBP is a molecule which acts as a/an
MCQ 327: The leaf which bears sporangia is known as
MCQ 328: Bolting of some rosette plants is promoted by
MCQ 329: There is a chemical link between anabolism and catabolism in the form of
MCQ 330: Rhizopus black bread mold undergoes sexual reproduction and produce
MCQ 331: All animals of Grade bilateria are
MCQ 332: The follicle cells after the release of an egg are modified to form a special structure called
MCQ 333: The primitive form of reproduction not involving any union of gametes is
MCQ 334: Mad cow infection and mysterious brain infections are being reported assuming the response is a
MCQ 335: Heartbeat rate, blood pressure, and digestive tract mobility is increased by
MCQ 336: Reserve food material in cyanobacteria is
MCQ 337: The metabolites of nitrogenous nature are eliminated from the body by a process
MCQ 338: The exchange of gases in respiration is only done by
MCQ 339: Gray vegetal cytoplasm gives rise to
MCQ 340: A neuron at rest is electrically
MCQ 341: Bryophytes need water for their reproduction and hence can't live without water so they are called
MCQ 342: Retroviruses can convert a single-stranded RNA genome into double-stranded viral DNA by a special enzyme
MCQ 343: The overall chemical reaction that takes place within a cell are collectively called as
MCQ 344: A family which has about 100 genres and 2000 species is
MCQ 345: From Hansen's node dorsal mesoderm is formed and is organized into
MCQ 346: The gradual osmotic flow from filtrate back into the kidney as it moves down in loop of henel is via the mechanism of
MCQ 347: In the next half-century, the number of people over age 80 will rise from 5 million to
MCQ 348: The Golgi apparatus is found virtually in all the cells which are in nature
MCQ 349: In which of the following Cytoplasm plays a role
MCQ 350: Afferent lymph vessels are numerous, and efferent lymph vessel is
MCQ 351: After maturation of neurons they
MCQ 352: Corticosterone belongs to the group
MCQ 353: The process in which infections becomes incorporated into bacterial chromosome instead of taking control of the host's machinery is termed as
MCQ 354: The removal of apex releases the lateral buds from apical dominance it is called
MCQ 355: Campylobacter requires a very low concentration of oxygen for growth, therefore, it is known as
MCQ 356: The animals which absorb heat from surrounding are called as
MCQ 357: In the digestive system, bile is secreted by
MCQ 358: The reticular formation is important in screening
MCQ 359: To start an impulse in the next neuron, it may take
MCQ 360: In higher plants, the entire plant body is not capable of growing but growth is limited to certain regions known as
MCQ 361: The most complex also the most abundant carbohydrates that are found in nature are
MCQ 362: Intercalary meristems are located at the base of
MCQ 363: The tail of stingray can inflict very dangerous wounds by its
MCQ 364: The anterior end of the digestive system is mouth and posterior end is
MCQ 365: The development of secondary male characteristics is caused by
MCQ 366: The known species of plants are
MCQ 367: The wavelength of visible light ranges between
MCQ 368: The molecule of chlorophyll is composed of
MCQ 369: Saliva is secreted by which glands?
MCQ 370: The generation of turgor pressure is done by the high osmotic pressure of
MCQ 371: Diatoms are major producers and form aquatic
MCQ 372: The smallest particles of light are called
MCQ 373: Acetylcholine and adrenaline are
MCQ 374: The carriers in the cell membrane which transport nutrients in plants are
MCQ 375: Hypertonic environment results in loss of water and ultimately the cell
MCQ 376: Melanocytes in the skin produce pigments that are
MCQ 377: The layer of connective tissue which surrounds the synovial joints is called
MCQ 378: The part of apical meristem which gets separated from apex by permanent tissues are called
MCQ 379: Smaller fibers which carry nerve impulse towards cell body are called
MCQ 380: The fertilized egg of an ascidian contains cytoplasm of
MCQ 381: Reproduction is mainly divided into how many types?
MCQ 382: In humans, the ovary releases what at one time only?
MCQ 383: The chlorophyll which is found in photosynthetic bacteria is known as
MCQ 384: The increase muscles contraction along with the increasing rate of heat production is called
MCQ 385: The parasitic fungus which destroys wheat plant is
MCQ 386: The epicuticle is the exoskeleton is made up of
MCQ 387: The epiblast is mainly presumptive
MCQ 388: Myxomycota is also termed as
MCQ 389: Osmoregulators excrete salts through
MCQ 390: Thylakoid membrane produces ATP by the process of
MCQ 391: Secretion of saliva by dogs on ringing the bell just before giving them food is an example of
MCQ 392: Both adrenaline and nor-adrenaline are secreted in situations of
MCQ 393: The dense network which are repeated divisions of arterioles are
MCQ 394: In cockroach, the rectum reabsorbs maximum salts and water hence excretory products are in the form of
MCQ 395: Touch me not (Mimosa Pudica) belong to the family
MCQ 396: Between ectoderm and endoderm, there is a jelly-like
MCQ 397: The events of the menstrual cycle involve the
MCQ 398: Liverworts belong to a subdivision of bryophytes called as
MCQ 399: The stomach is the organ of food digestion, therefore, secretes an enzyme which helps in digestion known as
MCQ 400: Tri-iodothyronine in its structure contains
MCQ 401: Long term memory is formed in which part of the brain?
MCQ 402: Most of the major organs of the human embryo are formed in which week of pregnancy?
MCQ 403: The process of photosynthesis cannot occur in the absence of
MCQ 404: The muscles of annelids which are arranged along the length of the body are called
MCQ 405: The non-protein part of an enzyme is called
MCQ 406: Medulla, pons, and cerebellum make up
MCQ 407: The hormone that controls the release of thyrotrophin releasing factor from the hypothalamus is
MCQ 408: Fungi can tolerate a range of PH from 2 to
MCQ 409: Those tubular membranes which separate the material of endoplasmic reticulum are called
MCQ 410: Overactivity of parathormone would lead to a progressive
MCQ 411: Lichens are examples of which of the following group?
MCQ 412: According to Erwin Chargoff analysis, the ratio of adenine and thiamine is
MCQ 413: Lipids are found in which?
MCQ 414: The cavity between the yolk and the endodermis called
MCQ 415: The estrous cycle is found in all mammals except
MCQ 416: Most of the glycogens upon mixing with iodine gives a color which is
MCQ 417: Class Hirudinea have additional markings on their body which are called
MCQ 418: A neuron has a fiber that carries impulse towards the cell body called
MCQ 419: The mass of pituitary gland in man is about
MCQ 420: The starches which have unbranched chains and are only soluble in hot water are
MCQ 421: The process of production of identical copies of organisms asexually is
MCQ 422: The morula stage changes into
MCQ 423: The effective temperature considered in vernalization is
MCQ 424: Cloning will be subjected to serious moral questions if applied to
MCQ 425: The plant which flower without being influenced by photoperiod is a
MCQ 426: Urea cycle needs two molecules of ammonia and one molecule of carbon dioxide to generate one molecule of
MCQ 427: The common ectoparasite which attacks both aquatic and terrestrial animals is
MCQ 428: Lipids have more (C-H) bonds and less oxygen, this unique quality allows lipids to perform a key role by
MCQ 429: What does the word Nematoda mean?
MCQ 430: The cells that elongate lengthwise more than in other direction are
MCQ 431: A definite charge bearing site of an enzyme on which a chemical substance attaches itself is called
MCQ 432: The stored oxytocin and antidiuretic hormone in the posterior lobe is released when they receive nerve impulses from
MCQ 433: The potential source of chemical energy at cellular level comes from the bond between
MCQ 434: Gene frequency, gene flow, population density, age distribution, overpopulation are the attributes of
MCQ 435: The leaves and petals follow the growth pattern concerning movement is
MCQ 436: Hepatitis B is also known as
MCQ 437: Prokaryotic cells have a specialized material with them called as
MCQ 438: In the gray crescent area, the cytoplasm contains essential information for
MCQ 439: Beverages like whiskey are made from Rye, Barley, Corn and Rum molasses which belong to the class
MCQ 440: The subdivision of trachea into fine thin wall tubules which are called
MCQ 441: Echinoderms have a vast number of species which are above
MCQ 442: The ability to regain or recover the lost or injured part of the body is called
MCQ 443: The animal which uses saliva and urine for cooling is
MCQ 444: Different cytoplasmic components contain different
MCQ 445: The production of only one kind of spores is called
MCQ 446: Tobacco is included in the category of
MCQ 447: The digestion in amoeba involves the killing and softening of food in a medium which is
MCQ 448: Elevated levels of nitrogenous wastes can lead to
MCQ 449: The nerve ring is found in the pharyngeal region of
MCQ 450: The growth of plants is influenced by
MCQ 451: The gastrin hormone stimulates the secretion of
MCQ 452: Enzymes, antibodies, hormones, and hemoglobin are examples of
MCQ 453: The flexible elastic and nonliving matrix collagen are secreted by
MCQ 454: Bleeding in plants is due to which?
MCQ 455: The chick after completing its development is hatched on the
MCQ 456: A very useful technique which helps in testing a nutrient's essentiality for plantation is
MCQ 457: The female between the age of 12-21 are in fear of getting obese give rise to a disease called
MCQ 458: Leaves called fronds are coiled at immature stages this pattern constituted is termed as
MCQ 459: The fertilized ovum for further development is implanted in the
MCQ 460: The bones in-ear of mammals are
MCQ 461: Astronauts may utilize the useful technique of hydroponic culture in space to
MCQ 462: If the movement is toward the stimulus, the response is
MCQ 463: The storage of food as lipids or glycogen in fungi is done by mycelium
MCQ 464: Nissl's granules are groups of
MCQ 465: A very dangerous species of the parasite which holds villi of the intestine and sucks blood and body fluid is
MCQ 466: The cavity present between the body wall and the elementary canal and lined mesoderm is called
MCQ 467: The fusion of cytoplasm is known as
MCQ 468: The gardener find Autumn fallen leaves due to the presence of good
MCQ 469: One of the symptoms of diabetes insipidus is
MCQ 470: The evidence suggests that birds have been evolved from ancestors of
MCQ 471: Plants which live underwater obtain oxygen from dissolved oxygen in water by
MCQ 472: The major components of an immune system include
MCQ 473: In chick of 18 hours, flat thickened area of the ectoderm is seen as
MCQ 474: The final size of a given cell type is attained during
MCQ 475: Animals have a basic instinct to control heat gain by adjusting their
MCQ 476: Adenovirus is responsible for the disease
MCQ 477: The drainage capacity of the soil is improved by burrowing activity of
MCQ 478: The softer connective tissue which covers the end of the bone joint is
MCQ 479: The condition in which palatine processes of maxilla and palatine fail to fuse and leads to interferences while inhaling food and ultimately causing aspiration pneumonia is
MCQ 480: The number of facial bones is
MCQ 481: Parthenocarpy is sometimes artificially induced for commercial purposes in
MCQ 482: Only one of the follicle continues to grow while all other follicles break down by a process called
MCQ 483: The non-surgical removal of kidney stones is the technique called
MCQ 484: For soundproofing in buildings which one is used?
MCQ 485: The estrogen production stimulates the
MCQ 486: The interventricular septum is complete along with four chambers of the heart in
MCQ 487: Misuse of antibiotic streptomycin can cause
MCQ 488: In kingdom Plantae, Locopsids is also called
MCQ 489: The evaporating cooling in physiologically adapted animals is done by activation of
MCQ 490: The rasping organ by which snail feed is called
MCQ 491: Angiosperms have a special mode of transport via phloem which applies to a theory called
MCQ 492: The absorption of all the products of digestion is done in
MCQ 493: Rocky coastlines in the intertidal zone have common algae called
MCQ 494: The strength is given to the cell wall of xylem cells by
MCQ 495: The thread-like structures present on the body of fungi is
MCQ 496: Soft callus grow in hematoma to clear up
MCQ 497: An estimated survey reports that 90% of lung cancer is caused by
MCQ 498: The thyroid gland is situated below the
MCQ 499: Radiolarian is an example of a unicellular organism and its common name is
MCQ 500: The functional and structural unit of kidneys is
MCQ 501: Melanophore stimulating hormone (MSH) is secreted in higher animals during
MCQ 502: The cell membrane is virtually impermeable to all ions except
MCQ 503: Synchronization of reproductive behavior of plants with their environment is done by
MCQ 504: Animals which feed on large pieces of food are called
MCQ 505: A chromosome is composed of a DNA and
MCQ 506: A walnut tree can be saved from the attack of aphid biologically by a parasite
MCQ 507: Non-vascular plants are also called as
MCQ 508: The sepal and petals give protection to the
MCQ 509: The larva which resembles its adult is called
MCQ 510: The nucleus of the egg cell in cloning is destroyed by
MCQ 511: Collection of responses predetermined by the inheritance of specific nerve is
MCQ 512: A synthesized knowledge of science may have observations which can be qualitative and
MCQ 513: The body of chordates is divided into an anterior proboscis, collar and
MCQ 514: Primitive ridges are thickened margins of
MCQ 515: A change in evolution gives rise to the increase in
MCQ 516: The transfer of heat out to the environment is done by
MCQ 517: Corpuscles situated deep in the body and receive deep pressure stimulus, are
MCQ 518: The body of the tapeworm is a ribbon-like and divided into a segment called
MCQ 519: Under normal circumstances, a patient's immune system can overcome bacterial or viral attack but in AIDS victim is
MCQ 520: The onset of epilepsy is usually before the age of
MCQ 521: Heartbeat can be detected in pulse only by
MCQ 522: The skeletal muscles are attached to the bone by a bundle of collagen and non-elastic fibers called
MCQ 523: The fluid present between the meninges for protection and cushioning of the central nervous system is called
MCQ 524: The phenomenon of root pressure in which water droplets exude from hydathodes is termed as
MCQ 525: By the alternation of generations, the spore of a moss develops itself into an alga like structure known as
MCQ 526: When blood starts mixing between two atria and that blood reaches the newborn baby its a disease known as
MCQ 527: AIDS was first reported for the first time in the early 1980s, in a group of young
MCQ 528: Each muscle fiber is composed of a large number of
MCQ 529: Glycogen is found in excess quantity in the animals' liver and
MCQ 530: A group of similar individuals that actually or potentially interbreed in nature is called
MCQ 531: The semi-solid mass which is produced after thoroughly mix up of food and gastric juice is called
MCQ 532: During gastrulation, the blastoderm splits into
MCQ 533: In Osteoporosis, the mass of bone is reduced and is caused by low levels of
MCQ 534: The structural and functional unit of life is called
MCQ 535: A synapse, the axon endings of one neuron are connected to the
MCQ 536: For which of the following IAA stands?
MCQ 537: Gray equatorial cytoplasm produces
MCQ 538: When digestion takes place inside cells its is termed as
MCQ 539: Upon foreign invasion, the blood cells produce chemicals called
MCQ 540: The exchange of materials takes place between nucleus and cytoplasm with the help of
MCQ 541: Sakcharon is a Greek word for saccharine, which means
MCQ 542: Drinking water and eating, moist food can compensate for the loss of water in animals that are
MCQ 543: The cause of Graves' disease is the production of an abnormal
MCQ 544: The hip joint is formed by hip bone by a proximal bone
MCQ 545: During periods of rapid growth, sexual maturation and stress situations, high levels of which is produced?
MCQ 546: An enzyme which is devoid of its either prosthetic group or coenzyme is designated as
MCQ 547: Endo-parasite which live in the bile duct of a human and sheep is
MCQ 548: The shield of macromolecules which provides greater pathogenicity to bacteria and protect them against phagocytosis is known as
MCQ 549: Plants obtain nutrients from which?
MCQ 550: The regulation of solute and balance of water is done by
MCQ 551: For flowering of plants, the most critical factor is the length of
MCQ 552: The inactive form of pepsin which has the power of destroying the cell's internal structure is known as
MCQ 553: The coloration of water orange, red or brown are the red tides which are caused by
MCQ 554: Enzymes are quite sensitive to change in concentration, temperature and
MCQ 555: The walls of any kind of cells and tissues become pitted during
MCQ 556: Class fillicineae, class Gymnospermae and class Angiospermae are the sub-division of group
MCQ 557: The regeneration characteristic of algae was showed by
MCQ 558: In myelinated neurons, the impulse jumps from node to node. This is called
MCQ 559: Integument indehiscent megasporangium is a/an
MCQ 560: Parasitic fungi which can only grow on their living host are called
MCQ 561: The morphogenetic determinants are present in
MCQ 562: The hormone is a Greek word meaning
MCQ 563: The effect of photoperiodism was first studied in 1920 by
MCQ 564: Removal of excess salts from the body is done by the help of
MCQ 565: The water blooms formation is done by many species of
MCQ 566: The callus helps in repairing a wound and unites the branches during
MCQ 567: The naked spores which help penicillium in asexual reproduction are called
MCQ 568: The shedding of the exoskeleton to replace it due to growth in the body is termed as
MCQ 569: The system in animals which possess glands that secrete hormones is known as
MCQ 570: The type of bacteria which is spherical and possesses several distinct arrangements based on their planes of division is
MCQ 571: The imbalance of electrolytes may lead to
MCQ 572: The scapula is connected to the sternum via
MCQ 573: In bird's egg, the process of cell division is confined to the small disc of protoplasm lying on the surface of
MCQ 574: An appropriate stimulus which can initiate a nerve impulse is known as
MCQ 575: In juxtamedullary nephrons, additional capillaries extend down from loop of henel and termed as
MCQ 576: Mollusks contain a blue pigment which helps in
MCQ 577: There are 48 chromosomes in a cell of a
MCQ 578: The tubular epithelium releases substances into the lumen, which balances pH is
MCQ 579: When there is low tension of oxygen, oxyhemoglobin rapidly
MCQ 580: Yeast which had been used for genetic research is
MCQ 581: Excess thyroxine produces a condition called
MCQ 582: A body which not have differentiated roots, stems, leaves and have no xylem or phloem at all is called a
MCQ 583: Placental mammals whose hairs developed into spines are called as
MCQ 584: Nervous design in any animal is highly co-related with its
MCQ 585: p730 to p660 conversion occurs in/at
MCQ 586: The unpaired facial bones are
MCQ 587: The distal end of megasporangium become specialized for capturing
MCQ 588: The quality of storing food using simple inorganic material belongs to plants which are
MCQ 589: Gram-positive bacteria Neisseria gonorrhoeae causes
MCQ 590: In raising blood pressure, the two hormones whose effect is synergistic are
MCQ 591: The unit of classification is a
MCQ 592: The great power of regeneration is present in
MCQ 593: Water potential is maximum achieved when the cell is placed in
MCQ 594: The appendages of bacteria which are hollow, non-helical and filamentous are called
MCQ 595: The absence of enzyme which helps in the catabolism of lipids, lead towards the disease called
MCQ 596: Between the uterine and fetal tissue, a circular organ is established called
MCQ 597: The substance which inhibits blood clotting is
MCQ 598: All veins in the body carry deoxygenated blood except
MCQ 599: Hinge joint and ball and socket joint are examples of
MCQ 600: Decrease of Follicle Stimulating Hormone (FSH) and the increase of estrogen causes the pituitary gland to secrete
MCQ 601: Neuroglia make up half of the nervous system in
MCQ 602: The peripheral part of the blastoderm where the cells lie unseparated from the yolk is termed as
MCQ 603: If cofactor is loosely attached to the protein part, it is termed as
MCQ 604: The cylindrical body of a Sea Anemone can be cut into two halves vertically in any plane, there it belongs to Grade
MCQ 605: Which is right about water?
MCQ 606: A single cubic centimeter of the human brain may contain several
MCQ 607: Any theory is considered a good theory if it leads to further hypothesis and is known as
MCQ 608: Animalia is the Latin word which means
MCQ 609: The modification of behavior through a diminution of response to repeated stimuli is
MCQ 610: Abnormal development of hands, feet, and jaws is known as
MCQ 611: Sharks and rays are present in the group of class
MCQ 612: Sugars which are less sweet and less soluble in water are called
MCQ 613: The rib cage is composed of how many pairs of ribs?
MCQ 614: The rate of transpiration is increased with the increase in
MCQ 615: Umbrella like form which is free-swimming and possesses sexual reproduction are
MCQ 616: The branches of lymph capillaries inside the villi of the intestine are termed as
MCQ 617: HIV multiplies but doesn't cause disease in every individual because it is
MCQ 618: In insects, there is no structural or functional relationship between excretory or digestive system except in
MCQ 619: The least temperature at which growth can continue is
MCQ 620: Sprouting of potatoes is inhibited by
MCQ 621: In the case of tissue transplant, the effect by which antigens reject foreign tissues is called
MCQ 622: The ability to form wing muscles and wings for flight in honey bees is
MCQ 623: When carbohydrates combine with proteins, the outcome product is called
MCQ 624: The common name for Enterobius vermiculations is
MCQ 625: Changes in intracellular substances during aging include
MCQ 626: Wounded plants develop masses of amorphous material with very poor differentiation known as
MCQ 627: Cohesion tension theory was given by
MCQ 628: The technique which involves the exposure of cancerous part of the body towards short wave radiations is
MCQ 629: Transport of organic solutes is attained by the help of
MCQ 630: The structure of carbon is a
MCQ 631: If euglenoids grow in dark due to lack of chlorophyll, they get the nutrients
MCQ 632: The subdivision of bronchus is called
MCQ 633: The unlimited growth which expands by invasion and metastasis is
MCQ 634: The parasite which lives inside the body of its host is called
MCQ 635: The function of nephridiostome is to collect
MCQ 636: Necrosis due to blockage by embolus leads to
MCQ 637: Heat shock proteins encircle enzymes as self-defense and protect the plant against temperature above
MCQ 638: Vitamins are synthesized within the plant body in the presence of
MCQ 639: The plants which produce flowers, fruits and seeds are from class
MCQ 640: The pathway of the passage of impulse during a reflex action is called
MCQ 641: The inactive form of trypsin is called
MCQ 642: From Platyhelminthes to chordates including humans, the nervous system present is
MCQ 643: The central metabolic cleaning house which is the central station of metabolism as well is
MCQ 644: Cellulose, pectin, and hemicelluloses together make up to form a
MCQ 645: In vascular plants, growth occurs through the activity of
MCQ 646: If a person receives polio vaccination he would become immune against
MCQ 647: Xylem, phloem, leaves, shoots, and roots are completely formed in stage
MCQ 648: Sleeping sickness and skin diseases are caused by Tsetse fly which transmits chemical called
MCQ 649: The left and right systemic arches in reptiles, deoxygenated blood is carried from
MCQ 650: The most important components of triglycerides are
MCQ 651: The C-N link in an amino acid is called a
MCQ 652: The enclosed seeded plants are another name for
MCQ 653: Capsicum Annum and Capsicum Frutespens are rich in vitamin A and
MCQ 654: A reproductive cycle found in all the female mammals except a human is called
MCQ 655: In kingdom Animalia a typical marine sponge is
MCQ 656: The special pores help in gaseous exchange in cork tissue are
MCQ 657: The process of breakdown of mycelium, in which each broken fragment give rise to a new mycelium is
MCQ 658: The elements which are transported throughout plants are called
MCQ 659: The inner layer of the stomach wall is called
MCQ 660: Late blight of potatoes is caused by a pathogen named as
MCQ 661: Ciliates can reproduce sexually by the process of
MCQ 662: Plants which belong to group sphenopsida are also called
MCQ 663: The human embryo is referred to as 'the fetus' from the beginning of which month of pregnancy?
MCQ 664: Young tissues or group of cells in plants that retain the potential to divide are called
MCQ 665: The possible sign stimulus for digger wasp for which it responds is
MCQ 666: When two bones meet, there occurs a
MCQ 667: Seeds are capable of enduring unfavorable conditions when they are
MCQ 668: Eyes and chemoreceptors are present in
MCQ 669: The lungs of the frog are fully expanded like
MCQ 670: An estimate measurement of a chromosome in a close circle of Escherichia Coli is
MCQ 671: The arrangement of molecules of a primary wall is in a sequence of
MCQ 672: Which one of the following is the role of the queen bee in bees?
MCQ 673: Poliovirus is found all over the world causing serious disease
MCQ 674: Sponges are used in the surgical operations for the absorption of
MCQ 675: If fertilized eggs are laid outside the female's body and develop there, this phenomenon is called
MCQ 676: Waxes are also secreted by some
MCQ 677: The fertilization of the ovum takes place in the proximal part of the
MCQ 678: The heads join thick and thin myofilament hence sometimes regarded as
MCQ 679: In plants duration of light effects, the
MCQ 680: The disease in which there is uncontrolled production of white blood cells is
MCQ 681: The nucleus taken from a somatic cell during cloning is introduced into an
MCQ 682: A conjugated molecule of glycolipids is made when carbohydrates in cell combine with
MCQ 683: Liver functions are pivotal to
MCQ 684: Cell death in a brain area that produces dopamine causes
MCQ 685: A family of plant mostly found in warm temperate regions is
MCQ 686: Phytochrome p660 absorbs red light at a wavelength of
MCQ 687: The rupture of seed coat and germination of seed coat effectively is facilitated by force
MCQ 688: The phenomenon in which light duration induce or suppress flowering is called
MCQ 689: Prolonged excessive secretion of thyroxine can lead to
MCQ 690: Mature sperms are formed by differentiation in
MCQ 691: Abstinence from smoking and maintaining an ideal weight can prolong life by an average of
MCQ 692: The reasoning which involves specific examples of observations and leads to a general principle is
MCQ 693: The fungi which help to improve the growth of a plant are
MCQ 694: The protein structures which are long, unbranched and slender tubules are called
MCQ 695: The enzyme which catalyzes the reaction of the Calvin cycle is known as
MCQ 696: For egestion of waste materials, the cockroach has
MCQ 697: A group of the ribosome which is attached to mRNA by small ribosome unit is known as
MCQ 698: The technique in which high concentration X-rays are directed towards stones from outside of the body is
MCQ 699: A continuous series of species which are arranged in ancestors to descendant sequence and each descendant has been evolved from an ancestor is known as
MCQ 700: Phytochrome p730 absorbs far-red light at
MCQ 701: The flow of water is faster when there is a steeper
MCQ 702: Trachoma splits near to the heterocyst and helps in fragmentation by the formation of
MCQ 703: Double layered thin membranous sacs which cover the lung are called
MCQ 704: The protein coat of the virus is called
MCQ 705: The long term change controlled by hormones is
MCQ 706: Group of animals which have bilateral symmetry are known as Grade
MCQ 707: Leucocytes travel to the site of invasion and protect the body against
MCQ 708: Which one of these is a freshwater sponge?
MCQ 709: The action potential is triggered in the post-synaptic neuron by causing changes in its permeability to
MCQ 710: A sheet of skeletal muscles which are present in the chest is
MCQ 711: The autonomic nervous system is further divided into
MCQ 712: Midbrain contains reticular formation which is a relay center for connecting
MCQ 713: The non-reproductive parts of a plant are
MCQ 714: The term carbohydrate means
MCQ 715: The storage of vital chemicals is
MCQ 716: Nematodes lack respiratory system and
MCQ 717: The leaves of mimosa require a specific time to regain its turgidity i.e.
MCQ 718: Internal fertilization occurs most often in
MCQ 719: Insulin is a primary structure of an amino acid which has two chains containing
MCQ 720: Adult Urochordates are sessile and covered by a layer called
MCQ 721: The filtration of blood takes place in
MCQ 722: The follicle-stimulating hormone in females stimulates
MCQ 723: Cloning has been used for desirable animals such as
MCQ 724: Differentiation in plants is considered to occur in plants in
MCQ 725: The mass of the clotted blood in a broken bone is called
MCQ 726: Limb regeneration is mostly studied in
MCQ 727: The virus which spreads with intimate physical contact, contaminated syringes and breastfeeding is known as
MCQ 728: The hormone belonging to the only mineralocorticoid is
MCQ 729: The release of the amino group during catabolism of amino acids is called
MCQ 730: All Protist have no common ancestor, that's why biologists regard them as
MCQ 731: The sperm is carried out of the testes and towards the prostate and urethra by
MCQ 732: Herbivores can easily digest cellulose in their digestive tract because of
MCQ 733: The stage of development in which body organs are formed, cells interact and differentiate, is called
MCQ 734: The leaves are the major sites for the presence of
MCQ 735: The third cleavage in the bird's egg is
MCQ 736: Genital herpes is caused by
MCQ 737: In annually growing trees, the active portion of the older tree is called
MCQ 738: The color of Corpus luteum in appearance is?
MCQ 739: Dogs have specialized evaporative cooling inside the respiratory tract by
MCQ 740: The internal buds which develop into new sponges are called
MCQ 741: The stage of development in which organs size increase and adult body is attained is known as
MCQ 742: Centipede and millipedes are examples of class
MCQ 743: After menopause, the female stops producing
MCQ 744: The formation do antibodies is stimulated by
MCQ 745: The two chains of amino acids in an insulin molecule are held together by
MCQ 746: The impulses which trigger heartbeat are maintained by
MCQ 747: The vertebral column provides more strength due to 4
MCQ 748: The disadvantage of cloning is
MCQ 749: Asexual reproduction commonly occurs in
MCQ 750: Corticosteroids produced by the fetus enter the maternal blood circulation and cause
MCQ 751: Organs which detect any change and receive stimuli are
MCQ 752: The active uptake of sodium is promoted by the action of an enzyme called
MCQ 753: Cellulose gives no color when it comes in contact with
MCQ 754: A molecule made up of copper and protein is called
MCQ 755: Anthoceropsida possesses stomata and chloroplasts in the epidermis which helps it in preparing their own food by
MCQ 756: The smooth form of endoplasmic reticulum is without
MCQ 757: The water has an excellent ability to absorb heat without changing its own
MCQ 758: Mitochondria extracts energy from food and convert it into energy in the form of
MCQ 759: The major constituent of control birth pill is
MCQ 760: Ring-shaped structures are usually seen in glucose and
MCQ 761: Axial skeleton and appendicular skeleton are parts of
MCQ 762: An example of reflexes and instinct is
MCQ 763: The notochord is a rod-like semi-rigid body of
MCQ 764: Agranulocytes are produced in which of the following?
MCQ 765: The continuous channels that appear to lie between the plasma membrane and nuclear membrane are
MCQ 766: Testosterone is secreted by cells between the seminiferous tubules called
MCQ 767: Secretin affects the production of
MCQ 768: A group of living organisms which are of same species and are located in one place is collectively termed as
MCQ 769: Spermatogonia increase in size and differentiate into
MCQ 770: The onset of Parkinson's disease is usually in
MCQ 771: A stable ecosystem is maintained with the interaction of
MCQ 772: The mutualistic association between certain fungi and roots of vascular plants are called
MCQ 773: The regulation of potassium is achieved in plants due to opening and closing of
MCQ 774: Vascular and cork cambium are examples of
MCQ 775: Cells containing a single nucleus are called as
MCQ 776: Leaves fall of helping in the plant to get rid of accumulated wastes hence called
MCQ 777: All birds in nature are
MCQ 778: The thick-walled, enlarged vegetative cells which accumulate food are called as
MCQ 779: If one amino acid in each beta chain of hemoglobin, out of 574 amino acids do not occupy the normal place it can lead to
MCQ 780: Phytochromes exist in how many forms?
MCQ 781: During development the blastoderm shape changes from circular to
MCQ 782: The most abundant compound also known as the medium of life is
MCQ 783: Ascospores, upon meiosis zygote, may produce fruiting bodies called
MCQ 784: The chitinous cuticle is secreted by
MCQ 785: Gibberellins are produced commercially from
MCQ 786: K+ ions during active potential causes repolarization by
MCQ 787: The animals which lack tissues organized into organs and are asymmetrical are from the subkingdom
MCQ 788: Microorganisms could cause disease, was proved by
MCQ 789: Naphthalene acetic acid (NAA) and 2,4 dichloro phenoxy acetic acid is
MCQ 790: The ovary under the stimulus of Follicle Stimulating Hormone (FSH) produces
MCQ 791: Kidneys receive 20% of blood with each
MCQ 792: The periodic reproductive cycle in females is commonly known as
MCQ 793: The plant growth ceases in the absence of
MCQ 794: The female body is prepared for lactation by
MCQ 795: Fruit development without fertilization with no seed formation is called
MCQ 796: Henbane (hyoscyamus niger) is a
MCQ 797: The most important components of phospholipids involve
MCQ 798: The inactive form of the enzyme pepsin is called
MCQ 799: A valuable and most important quality of proteins is to prevent blood loss after an injury by the process of
MCQ 800: In the case of uremia, the only treatment left is
MCQ 801: Genital soreness and ulcers are caused in the disease
MCQ 802: A chemical substance which can block an active site is called
MCQ 803: The special complex which is built in the thylakoid membrane which helps in moving downgradient is called
MCQ 804: The megaspores produced after evolutionary phase germinated to form
MCQ 805: Many bacteria contain additional molecules which are very helpful in modern genetic engineering techniques, they are circular and self-replicating and called as
MCQ 806: Due to its unique properties carbon can react with many known elements forming
MCQ 807: Gastric secretion may also be inhibited by
MCQ 808: Ganglia are the structures formed by the cluster of
MCQ 809: Cellulose is highly insoluble in water and is not digested in the digestive tract of
MCQ 810: The place on a chromosome where spindle fibers are attached during cell division is called
MCQ 811: Balanoglossus and Saccoglossus belongs to the phylum
MCQ 812: Which of the following is included in kingdom Animalia?
MCQ 813: The digestion which is imperfect or incomplete is called
MCQ 814: Class Arachnida has special appendages on their body called as
MCQ 815: Glomerulus circulates the blood via
MCQ 816: The animals sometimes respond instinctively to specific and complex stimuli called
MCQ 817: The support to the baby plants is availed by cells
MCQ 818: Lymph capillaries join together forming larger lymph vessels, which give rise to
MCQ 819: If vibration becomes too violent on increasing heat above the limit, the enzyme activity will be lost and the enzyme is said to be
MCQ 820: The electrical potential that exists across a cell membrane is called
MCQ 821: Organisms having both the sexes are known as
MCQ 822: Different organs system assembled in animals and human beings to form a/an
MCQ 823: The part of hydra's body that is most responsive to a stimulus is
MCQ 824: When the cell enlargement ceases, the process that starts is
MCQ 825: The secretions hardened in polyps and covered by stony cup in
MCQ 826: The seed is composed of an embryo and
MCQ 827: The lateral plate mesoderm is split into
MCQ 828: During the process of exosmosis, the protoplast shrink which is termed as
MCQ 829: Impulse carried by motor neurons is received by
MCQ 830: The ions in the apoplast pathway are further prevented for progress by
MCQ 831: A thick rigid spiral is called
MCQ 832: Proteins comprise off total dry weight in a cell which is over
MCQ 833: If a person frequently shrieks and cries and falls unconscious and rigid. This might be a sign of
MCQ 834: The family of Octopus is called
MCQ 835: The oxidizing agent which removes hydrogen from fumarate is called
MCQ 836: A warm spell in winter for seed is
MCQ 837: In a coordination system, Nicotine mimics the action of
MCQ 838: The maintenance of internal temperature within a tolerable range is called
MCQ 839: A mammalian cell contains 18% of
MCQ 840: Hypotonic environment leads to cell towards
MCQ 841: The pituitary gland on the onset of puberty releases
MCQ 842: Primary oocytes divide meiotically into
MCQ 843: The folds or convolutions in the cerebrum are related to
MCQ 844: Lock and Key model was developed for the visualization of substrate and enzyme concentration was proposed by
MCQ 845: The two most important ions in a nerve cell are
MCQ 846: The clot facilitate an injury by covering it to prevent further bleeding until damaged tissue can be
MCQ 847: When the internal environment is concentrated due to external change this is
MCQ 848: Muscles are composed of which?
MCQ 849: The earliest known bird is
MCQ 850: Preventing the loss of sodium ions from the kidney tubes is a function of
MCQ 851: The first two cleavage planes are
MCQ 852: Nephrons have extensive blood supply by
MCQ 853: Auxin inhibits the growth of
MCQ 854: Myelin sheath around a neuron is for
MCQ 855: The definite but changeable shape is given to ciliates by its outer covering called a
MCQ 856: The lowering of leaves in the evening and raising them in the morning are regarded as
MCQ 857: The gases which swim bladders can fill in their Pharynx are Oxygen, CO2 and
MCQ 858: The fungi which are very sensitive to pollution are called
MCQ 859: Bacteria reproduce asexually by the process of
MCQ 860: The muscles which are called striped, striated and voluntary are
MCQ 861: The phenomenon of releasing ovum from the ovary is called
MCQ 862: The twins which are produced sexually are
MCQ 863: The central nervous system, heart, skin and eye bones joints are damaged in
MCQ 864: The gastrovascular cavity for entry of food as well as the removal of waste constitutes sac like
MCQ 865: The tertiary conformation of proteins is maintained by 3 types of bonds namely ionic, hydrogen and
MCQ 866: The cell body of a neuron is also known as
MCQ 867: The mode of transport in diploblastic animals is
MCQ 868: The exoskeleton appears on the dorsal side of the Arthropods in the form of
MCQ 869: A layer made of polysaccharide which is non-living, vascular and secreted by epidermis is called
MCQ 870: The tissues which are specialized for conducting water are termed as
MCQ 871: The control center of sensory areas like sight, speech, taste, smell, and hearing is
MCQ 872: A cellular which capped the body throughout have specialized cells called as
MCQ 873: The part of the brain which serves as a relay station between the body and the cerebrum
MCQ 874: Inferior vena cava and superior vena cava collect blood from the body and pour in heart's
MCQ 875: Hyphae which lack septa and contain long multinucleated large cell are called
MCQ 876: Sepals and petals also help in pollination, so after pollination they usually
MCQ 877: A compound which is responsible for the structure of membranes of cell and its organelles is a
MCQ 878: In mammals, the main key role for thermoregulation has been adapted by
MCQ 879: The corpuscles which are combined with potassium are the carriers of
MCQ 880: Spemann divided the zygote of salamander into how many parts?
MCQ 881: In amphibians, thyroxine bring about the process of
MCQ 882: The plant body is attached to the soil by the help of rhizoids in species of Bryophytes known as
MCQ 883: In reproduction, sperm fertilizes the
MCQ 884: In kingdom Animalia, Hydra and obelia are
MCQ 885: Along with auxins, the hormone that causes apical dominance is
MCQ 886: In the condition of low oxygen concentration, oxyhemoglobin is
MCQ 887: Maintaining body position is the function of
MCQ 888: Sensilla are a specialized modification of exoskeleton for exchange of
MCQ 889: Behavioral modification involving the application of insight or reasoning to a novel situation is
MCQ 890: The transport of deoxygenated blood from the right ventricle to the lungs is done by
MCQ 891: The 'little ring' is a common name for the organism of Phylum
MCQ 892: The mode of fertilization in class Pisces is
MCQ 893: Tobacco plant flowers only after exposure to a series of
MCQ 894: The average age of menopause for females is
MCQ 895: The leaves of mimosa results form a rapid loss of its turgor in the period of
MCQ 896: Bacteriophages are of two structural forms either cubical symmetry or
MCQ 897: High level of aluminum contributes to the onset of
MCQ 898: If the two generations during alternation of generation in plants are vegetative similar it is referred to as
MCQ 899: The dominant diploid sporophyte generation alternates with inconspicuous haploid gametophyte generation, it is the pattern of the cycle of
MCQ 900: Throughout the axoplasm, there are present
MCQ 901: All the insectivorous plants are true
MCQ 902: A special condition of rest which enables an embryo to survive the long periods of unfavorable conditions is called
MCQ 903: Once the placenta is established, it starts secreting the hormone
MCQ 904: The capacity to tolerate dehydration in animals is termed as
MCQ 905: The reproductive structures of spores are called
MCQ 906: There are five kingdoms according to Lynn and Karoline which are Prokaryotes, Protoctista, Fungi, Animalia and
MCQ 907: The electric shock which can stun prey is the specialized feature of
MCQ 908: The presence of a nucleus in a cell was reported by
MCQ 909: Lymph nodes are found in which part?
MCQ 910: Chemo active movements response towards the stimulus of
MCQ 911: Class amphibian, reptilian, aves and mammalian belong to sub-phylum called
MCQ 912: The abdominal pouch of class Metatheria is called as
MCQ 913: The walls of the glomerulus are
MCQ 914: The example of animals bearing special shell composed of calcium crystals
MCQ 915: Vagus nerve is present in which nervous system?
MCQ 916: Food which supplies elements necessary for metabolism are called
MCQ 917: Active transport depends on
MCQ 918: B-lymphocytes is the name given due to the relationship with
MCQ 919: The parasites which are not wholly dependent on their host and can survive without them, are called
MCQ 920: In females, the production of the egg is a
MCQ 921: The flaps of the tricuspid valve are attached to fibrous cords called
MCQ 922: The edge of the capsule of sporangium is made up of two parts, the annulus and the
MCQ 923: T.W.Engelmann, in 1833, obtained the first action spectrum while working on
MCQ 924: There is no involvement of blood in the transport of gases in
MCQ 925: If the two gametes uniting are different in size and structure, they are called
MCQ 926: GA3 is used in the brewing industry to stimulate the production of
MCQ 927: Ervin Bunning proved the innate nature of 24 hr. rhythm in
MCQ 928: Clycylalanine belongs to which class of peptides?
MCQ 929: Flagella respond to chemical signals by movement with the help of flagella, this behavior is called as
MCQ 930: In Platyhelminthes, respiratory and circulatory system are
MCQ 931: The spontaneous movements which occur as a result of internal causes are called
MCQ 932: When capillaries join together, they form
MCQ 933: All vertebrates possess which circulatory system?
MCQ 934: Cnidarians are usually found in two basic forms the polyps and the
MCQ 935: Fumarate is converted to malate while adding a molecule of
MCQ 936: The conversion of stones into sand or minute pieces after shock wave treatment are passed out in
MCQ 937: Planaria has no body cavity, instead, it has mesenchyme layer of cells which are loosely packed between ectoderm and endoderm, hence called
MCQ 938: Rough endoplasmic reticulum assists in the synthesis of
MCQ 939: The percentage of plasma in human blood is about
MCQ 940: The AIDS virus penetrates the host's
MCQ 941: Despite the tapeworm being bisexual, cross-fertilization is ensured to maintain
MCQ 942: The largest brown algae which are tough and leathery in its appearance is called the
MCQ 943: Tentacular feeding is adapted in
MCQ 944: A complete, mature and infectious particle of the virus is called as
MCQ 945: The human central nervous system is made up of
MCQ 946: Autonomic nervous system controls
MCQ 947: Biorhythms showing periodicity of about 24 hrs. are called
MCQ 948: The animals which feed on dead and decomposed debris are called
MCQ 949: Closely packed cylindrical structures present within epithelial cells is called
MCQ 950: The reasoning which moves from a general statement towards a particular conclusion is
MCQ 951: The evolutionary adaptations of nitrogenous wastes are
MCQ 952: Organisms which have a distinct nucleus with (chromatin material and a nucleolus) are called
MCQ 953: A single mouthed sac-like digestive cavity in cnidarian is called
MCQ 954: Meiosis is also known as
MCQ 955: The arrangement of unequal dichotomies in a single plane is called
MCQ 956: The water potential of pure water is equal to
MCQ 957: In the resting membrane, potential sodium ions are higher in an amount outside than inside the membrane surface is
MCQ 958: The somatic nervous system is made up of
MCQ 959: The small pores which help water to enter the body of sponges are called
MCQ 960: Glycolysis means splitting of which molecule?
MCQ 961: Giant Squid is the largest invertebrate
MCQ 962: The lipids which are composed of glycerol and fatty acids are called
MCQ 963: The movement by which food is passed into the stomach and mouth from the intestine is due to a movement known as
MCQ 964: Red light helps in the promotion of
MCQ 965: A single rotting apple may contain an estimated number of worms i.e.,
MCQ 966: The gills of bony fishes are covered by
MCQ 967: The pore-bearing animals are commonly called
MCQ 968: The process of aging can be slowed by
MCQ 969: Breathing and swallowing are controlled by
MCQ 970: Peroxisomes are usually found in protozoa and
MCQ 971: Chlorophyll (b) facilitate chlorophyll bypassing absorbed
MCQ 972: The platelets are large cells which are in the form of fragments are called
MCQ 973: A large regional community which is primarily determined by the climate is termed as a
MCQ 974: Xylem and phloem are called
MCQ 975: The main source of carbohydrates for various animals is
MCQ 976: The oval lump of slimy food mass which is partly digested is called
MCQ 977: The type of cleavage in a bird's egg is known as
MCQ 978: Imperfect fungi lack sexual reproduction and possess special genetic recombination, called
MCQ 979: The reduction of progesterone level stimulates the pituitary gland to produce
MCQ 980: Arthropods have well developed excretory system, which is composed of
MCQ 981: Bilobed-mass composed of two ganglia in Planaria is a substitute of
MCQ 982: Enzymes are capable of recognizing and reacting with a special chemical substance called
MCQ 983: Five Kingdom system was modified by Margulies and
MCQ 984: To study epilepsy, a test is conducted called
MCQ 985: In unfavorable environmental conditions, a seed may have to face
MCQ 986: The mammalian ancestors and reptiles lived together in Jurassic times hence called
MCQ 987: Number of pairs of spinal nerves humans have is
MCQ 988: The blue light-sensitive pigments found in plants are called
MCQ 989: The cell wall components do not dissolve in water and instead increase in
MCQ 990: The ten pair of apertures in the tracheal trunk of cockroach is called
MCQ 991: A very important organelle which is also called the powerhouse of the cell is
MCQ 992: Sarcoplasm of the skeletal muscles fiber is composed of
MCQ 993: Seizing and swallowing type of macrophagous feeding is done in
MCQ 994: Gallstones are produced by the precipitation of
MCQ 995: The cytoplasm is cut underneath and is separated from the yolk by
MCQ 996: The color of the bile is
MCQ 997: The common name for Madrepora is
MCQ 998: The undulating waves of contraction and relaxation of muscles help Nematodes in
MCQ 999: In a coordination system, all spinal nerves are
MCQ 1000: The enzymes which are helpful in cellular respiration is found in
MCQ 1001: The movements which occur upon contact are called
MCQ 1002: Microbiologists have divided bacteria into two major groups eubacteria and
MCQ 1003: Telencephalon and diencephalon are two sub-divisions of
MCQ 1004: Ovulation is suppressed by which hormone?
MCQ 1005: The disease which may tend to run in families due to genetic disposition is
MCQ 1006: In human females, the periodic reproductive cycle is completed in approximately
MCQ 1007: If there is a tuft of flagella on both two poles of bacteria, it is called as
MCQ 1008: The base plate of a bacteriophage is attached to tail fibers which are in number
MCQ 1009: Rapid folding of the leaflets upon touching is shown in
MCQ 1010: In a chemical reaction, when alcohol and acid react together releasing a water molecule, the compound is formed, named as
MCQ 1011: The group of animals which feed on their mother's milk is called
MCQ 1012: The cells which are present in seed coats and nutshells which provide protection are
MCQ 1013: The people who deal with the living things and non-living things which affect the living things in any way are known as
MCQ 1014: The largest group of arthropods exists in the class
MCQ 1015: After the contraction of ventricular muscles, the blood is moved via a swollen portion called
MCQ 1016: Cranium consists of 8 bones in which
MCQ 1017: The molecules which have one or more polypeptide chains in the form of fibrils are called
MCQ 1018: The exoskeleton of colonial coelenterates take lime from
MCQ 1019: Gametophyte doesn't undergo reshuffling of genes because gametes are produced by
MCQ 1020: The no. of lobes of the pituitary gland is
MCQ 1021: The masses of dilated, tortuous veins in the anorectal mucosa are called
MCQ 1022: Budding is a method of asexual reproduction found in
MCQ 1023: The external skeleton of arthropods are composed of
MCQ 1024: The water transpiration is done 90% by the process of
MCQ 1025: Pollination and dispersal of seeds is usually done by the help of
MCQ 1026: Prolonged high blood pressure weakens the heart muscles by damaging the lining of
MCQ 1027: The lower layer of cells formed after splitting of blastoderm is called
MCQ 1028: Work on embryonic induction was reported by
MCQ 1029: When an insect comes on a leaf of the insectivorous plant with stiff bristles, the lobes come together with bristles
MCQ 1030: Galls are growths on plants induced by
MCQ 1031: The biological clock once stimulated produces a hormone for initiating flowering that is
MCQ 1032: Negative physiological changes in our body can be termed as
MCQ 1033: Which is true about Cardiac muscles?
MCQ 1034: The triple layer of membranes covering the brain and spinal cord are called
MCQ 1035: The more resistant hyphal wall in Fungi is
MCQ 1036: Under secretion of somatotrophin hormone causes
MCQ 1037: A set of characteristics that separates a living organism from non-living objects(including dead organisms) is called
MCQ 1038: The lobed structure which is present at the mouth of the alimentary canal of annelids is termed as
MCQ 1039: Blue-green algae and bacteria belong to the kingdom
MCQ 1040: In earthworm, the fluid-filled compartments are separated by
MCQ 1041: The seminal fluid or semen provides
MCQ 1042: Behavior is mainly divided into how many types?
MCQ 1043: A solid mass of blood constituent which acts as a barrier in a blood vessel is called
MCQ 1044: Spleen, thymus, tonsils, and adenoids produce
MCQ 1045: Porphyrin ring in hemoglobin molecules contain which atom in their centers?
MCQ 1046: On which Photorespiration depends upon?
MCQ 1047: A disease which is transmitted to people by the bites from rabid dogs and cats is
MCQ 1048: Two long polypeptide chains coiled together to form
MCQ 1049: Sperms of sponges are released in water and taken to eggs by
MCQ 1050: The groups of similar cells that are arranged into loose sheets or bundles are called
MCQ 1051: The sense organs which are present on the lips at anterior ends are called
MCQ 1052: Coral islands and coral needs are formed by the skeleton of
MCQ 1053: The key feature of identical twins is that they are
MCQ 1054: The opening of ileum into the large intestine is called
MCQ 1055: Spermatogonia are produced by repeated division by the cells of
MCQ 1056: Pepsinogen is secreted by the cells called
MCQ 1057: For maximum growth, the optimum temperature is
MCQ 1058: Archaeopteryx has much resemblance to dinosaurs and each wing had
MCQ 1059: The transfer of a genetic message from the nucleus to the ribosome in the cytoplasm is done by
MCQ 1060: Arthritis is chronic in
MCQ 1061: Hormones which control the secretion of hormones in many other endocrine glands are
MCQ 1062: The exoskeleton is hardened outer covering which is
MCQ 1063: In the male reproductive system, the testicles are inside a sac called
MCQ 1064: A system for naming any classifying all organisms were given by
MCQ 1065: Antagonistic to gibberellins, flowering is promoted in short-day plants by
MCQ 1066: In catabolic series of reaction, the complex molecules are broken down into smaller molecules releasing
MCQ 1067: During the night, a plant has Phytochrome in the form of
MCQ 1068: At present, the number of people over age 75 is
MCQ 1069: The uterine tube or fallopian tube opens into the
MCQ 1070: The constriction and hardening of arteries occur in a condition known as
MCQ 1071: Insects which eat dead animals and vegetables are known as
MCQ 1072: The normal speed of nerve impulse in humans is
MCQ 1073: The cell had no nucleus was termed as
MCQ 1074: In the case of no fertilization, what happens?
MCQ 1075: The pollen of pinus can float in the air for a longer period due to the presence of
MCQ 1076: Neurotransmitter molecules after being released bind to the receptors in the
MCQ 1077: The large intestine is composed of
MCQ 1078: Uric acid is an excretory product of animals from
MCQ 1079: The internal hydrostatic pressure produced by osmosis is called
MCQ 1080: Sponges belong to which class of kingdom Animalia?
MCQ 1081: The structure in which a ribose sugar will form five cornered ring is called
MCQ 1082: The metabolic pathway in the production of urea from nitrogenous waste is known as
MCQ 1083: Light energy is absorbed by the pigment molecules present on
MCQ 1084: Water is 50 times more viscous than
MCQ 1085: Proteins combine with fat molecules in lymph vessels to form
MCQ 1086: Symptoms of Alzheimer's disease are similar to those diseases that cause
MCQ 1087: A molecular structure of sugar which contains 6 carbon is known as
MCQ 1088: Chromosome doubling in every generation reproducing sexually is prevented by
MCQ 1089: The chemotherapeutic chemical substances which are used to treat infectious diseases are
MCQ 1090: The cylindrical animals which are nutritive in function are polyps of cnidarian and named as
MCQ 1091: The growth of mycobacterium is accelerated in
MCQ 1092: Disc slip can be treated by
MCQ 1093: The plant which shed its leaves to restrict transpiration is
MCQ 1094: Alpha carbon is attached with an amino group on one side and the other side is attached to a
MCQ 1095: Internal fertilization is advantageous because it protects the fertilized egg from
MCQ 1096: During dark reactions, the energy is stored in the molecules of
MCQ 1097: If bile pigments accumulate in the blood, it can cause
MCQ 1098: Antoine Van Leeuwenhoek described the microbes like bacteria and protozoa and called them as
MCQ 1099: The most commonly found sugars are pentose and
MCQ 1100: Kidneys remove nitrogenous wastes and act as a
MCQ 1101: A virus which is passed on to progeny cells after being incorporated in the host genome is called
MCQ 1102: The release of oxytocin during labor pain occurs in the form of
MCQ 1103: Proteins are synthesized within the mitochondria that's why it is called
MCQ 1104: Viviparity is a feature of
MCQ 1105: The literal meaning of gymnosperms is
MCQ 1106: Cellulose constitutes the important part of plant cell called
MCQ 1107: The basic element of the organic compound is
MCQ 1108: The fact that each cell contains all the genetic information of the original zygote was proved by
MCQ 1109: In transportation, Granulocytes include
MCQ 1110: Secondary sexual characteristics in females are caused by
MCQ 1111: Into how many types, Thorpe classified learning behavior
MCQ 1112: In the differentiation process, cambium responsible for secondary growth is recognized during stage
MCQ 1113: Recent studies prove that development depends on the position of
MCQ 1114: The fusion of the vertebral joint causing immobility is
MCQ 1115: The process of formation of the central nervous system is called
MCQ 1116: All living things undergo one of the essential property to remove waste material is
MCQ 1117: Morula has a disc-shaped mass of cells having two or more layers in thickness called
MCQ 1118: Excess melanophore stimulating hormone is secreted in
MCQ 1119: The cerebellum is best developed in
MCQ 1120: Amygdala is involved in the
MCQ 1121: There is a reduction as well as oxidation during photosynthesis hence called as
MCQ 1122: Mammals which give birth to the young ones of their kind are called
MCQ 1123: The key feature in vernalization is
MCQ 1124: A set of organelles contain
MCQ 1125: Fertilization that occurs outside the body of an organism is called
MCQ 1126: The animals which excrete uric acid are called as
MCQ 1127: Cholesterol acts as a precursor of
MCQ 1128: Pseudomonas is an example of bacteria which is
MCQ 1129: Green sulfur bacteria and purple sulfur bacteria are examples of
MCQ 1130: Freshwater animals are in contact mode of hydration with loss of
MCQ 1131: After the gaseous exchange, the air is removed by the process of
MCQ 1132: The pituitary gland is also known as
MCQ 1133: Vaccination for specific disease helps the person to get
MCQ 1134: The movement of the young stem in a zigzag fashion is found in
MCQ 1135: Climbing vines follow the tropic movements of
MCQ 1136: The movement and re-arrangement of cells takes place in
MCQ 1137: Trypsin splits proteins into peptones and
MCQ 1138: The dormant, resistant bodies which develop during the differentiation of vegetative cells are
MCQ 1139: The sponges for regeneration take
MCQ 1140: Vasopressin hormone belongs to the family of
MCQ 1141: Light influences growth in how many ways?
MCQ 1142: Splitting of Adenosine triphosphate (ATP) is done by an associated enzyme called
MCQ 1143: The tissue which is made up of dead cells in older stems is called
MCQ 1144: Amphioxus is a sub-phylum of
MCQ 1145: Palmitic acid has a melting point of
MCQ 1146: The best commercial sponges are found in the warm waters of
MCQ 1147: One gram of ammonia to be excreted need water of about
MCQ 1148: The leaf which has long stiff bristles and a midrib between them is the feature of
MCQ 1149: The specificity destruction of antigen is done by
MCQ 1150: Transpiration that occurs from the vital organ lenticels present on the stem is termed as
MCQ 1151: The cell membrane of a bacteria invaginates into the cytoplasm and form a structure called
MCQ 1152: The first scientist to propose an objective definition of instincts in terms of animal behavior is
MCQ 1153: The enzyme which digests starch into maltose is called
MCQ 1154: Parthenocarpy occurs due to hormonal imbalance usually due to high level of
MCQ 1155: The left cerebral hemisphere controls which side of the body?
MCQ 1156: Between two neurons, a microscopic gap exists which is the contact point of neurons called
MCQ 1157: The organelle which deals with the formation of decomposition of hydrogen peroxide is called
MCQ 1158: The specialized covering around megasporangium is called
MCQ 1159: Spirochaete, treponema pallidum causes
MCQ 1160: In the tip of root and shoot, young cells
MCQ 1161: Flowering is inhibited in short-day plants and promoted in long-day plants by
MCQ 1162: The sieve-like plate structure which helps in circulation water through channels is called
MCQ 1163: Bone lighter in weight and rich in blood vessels and highly porous is
MCQ 1164: If the higher temperature persists for a longer period, the plant may
MCQ 1165: The technique in which blood is circulated through dialyzer is known as
MCQ 1166: The parasite which is responsible for dysentery in humans is known as
MCQ 1167: The antibodies which are present in lymphocytes are synthesized by vertebrates in response to antigens are
MCQ 1168: Tadpole larva of frog does not metamorphose, instead grows to a large-sized tadpole due to deficiency of
MCQ 1169: The instincts are important for animals with
MCQ 1170: A lichen which is used as food by animals like reminders are called
MCQ 1171: The bones bend and deform due to lack of calcium salts deposition and lead to
MCQ 1172: In the case of acute shortage of water, animals convert wastes into an excretory product which requires a minimum amount of water which is
MCQ 1173: The movement of water molecules along cell walls of xylem vessels is due to a force called
MCQ 1174: Eugenic aims are achieved by using a technology
MCQ 1175: The body of sponges possess a single charity called
MCQ 1176: Malaria is caused by the bite of an infected female
MCQ 1177: Shoots follow the growth movements which is
MCQ 1178: Neurons at rest (non-conducting neuron) have electric potential called
MCQ 1179: The tobacco weakens the walls of
MCQ 1180: Auxins promote cell division in
MCQ 1181: In humans, the reduced part of the brain is
MCQ 1182: Pyrimidines are composed of cytosine, thiamine and
MCQ 1183: During active membrane potential Na+ ions diffuse into the neuron through
MCQ 1184: For each impulse autonomic nervous system utilizes only
MCQ 1185: Flagellates which are sessile, marine and their single flagellum is covered by a collar is called
MCQ 1186: The ratio of mRNA of a total RNA in the cell is
MCQ 1187: The synthesis of ATP by the initiation of reaction with light is called
MCQ 1188: The structural and functional unit of the nervous system is
MCQ 1189: The mammalian kidney is specialized to conserve water above
MCQ 1190: The stunted growth of plants is due to a deficiency of
MCQ 1191: Efficient respiration is done in Hydra by the help of
MCQ 1192: Fertilization in young sporophyte which is first attached to gametophyte later becomes
MCQ 1193: Na+ and K+ pumps in the cell membrane work due to
MCQ 1194: During the day, a plant possesses phytochrome of about
MCQ 1195: The megaspore which develops into female gametophyte consists of cells that are only
MCQ 1196: The cytoplasm is filled with 80% of
MCQ 1197: The study of chemical components, as well as chemical processes that take place in a living organism, is
MCQ 1198: In the next half-century, the number of people over age 75 will rise from 8 million to
MCQ 1199: The ribosome is synthesized in the part of the cell called
MCQ 1200: Globular proteins are multiple folding of polypeptide chain hence their shape is
MCQ 1201: The removed ectoderm from a frog's embryo developed which one of these?
MCQ 1202: Effective drug for the treatment of Parkinson's disease is
MCQ 1203: Nourishing cells around ovule are called
MCQ 1204: The stimuli which produce a response and are external are called
MCQ 1205: In a mammal, the thyroid gland has lobes
MCQ 1206: Gene controlled substances are mostly present in the
MCQ 1207: Photo tactic movement helps the chloroplast to retain maximum light for
MCQ 1208: Thymus gland makes the T-cells
MCQ 1209: The alternative path adopted by photoexcited electrons is
MCQ 1210: The disease in which fluid-filled vesicles are formed on the body which takes the shape of pustules and leaves pitted scars is
MCQ 1211: Cylinders of dividing cells contributing to secondary growth are called
MCQ 1212: The cap of Acetabularia crenulata is in which shape?
MCQ 1213: The ability to reform its lost organ in animals is called as
MCQ 1214: The instrument which helps to measure the ability of a pigment to absorb light is called
MCQ 1215: The built-in mechanism by which sign stimuli are recognized is called
MCQ 1216: In the center of the blastoderm, the cells are
MCQ 1217: The encapsulated ending which lies in papillae which extend into the ridges of fingerprints are
MCQ 1218: The Urine is stored inside the body in a sac called
MCQ 1219: The cell membrane is chemically composed of 40-60 % of
MCQ 1220: Single-ringed pyrimidines and double-ringed pyrimidines are types of
MCQ 1221: The anterior five vertebrae fuse to form
MCQ 1222: The elimination of nitrogenous waste from the body constitutes
MCQ 1223: Purine comprises of which one?
MCQ 1224: The optimum Ph for Chymotrypsin is
MCQ 1225: If an Oligosaccharides is hydrolyzed, it will yield up to two to ten
MCQ 1226: Pupil dilation, digestion, and acceleration of heartbeat is done by
MCQ 1227: Nervous spasm, convulsion, and psychotic delusion is a result of swallowing ergot-contaminated flour, this disease is known as
MCQ 1228: The example of filter feeder plant is
MCQ 1229: The sexual reproducing Platyhelminthes consists of both male and female organ on the same individual, hence called
MCQ 1230: Coxal bone is composed of which of the following?
MCQ 1231: White matter is made up of
MCQ 1232: The fetus inside mother is nourished via
MCQ 1233: The stinging cells which are produced from cnidocytes are called
MCQ 1234: No absorption of water and salts takes place in the condition known as
MCQ 1235: The turgor pressure keeps the plant rigid and resistant to
MCQ 1236: The passing out of placenta after birth is called
MCQ 1237: Peristaltic contractions lead to
MCQ 1238: The shape of the head of a bacteriophage is
MCQ 1239: In the estrous cycle, the hormone that prepares the uterus for conception is
MCQ 1240: Carbon dioxide is essential for plants to carry out the process of
MCQ 1241: The most important metabolic activities of all organisms are
MCQ 1242: The elevated levels of calcium in blood lead towards
MCQ 1243: The comparison between the sediment layers can inform us about
MCQ 1244: In the ovary, the second meiotic division occurs in the
MCQ 1245: The second pay off phase of cellular respiration is called
MCQ 1246: The acute form of Arthritis can be treated by
MCQ 1247: The vascular bundles possess bundle cap to strengthened additionally in
MCQ 1248: Cats and dogs are an example of
MCQ 1249: The monosaccharides obtained as a result of hydrolysis of oligosaccharides are the covalent bond between them, which is called
MCQ 1250: Fatty acids which remain in a liquid state at room temperature are said to be
MCQ 1251: Human embryo remains enclosed in a sac called
MCQ 1252: The sclerenchymatous cells are heavily lignified in
MCQ 1253: Which one is true about Auxins?
MCQ 1254: 50 ml of water is needed to remove nitrogen in urea that is
MCQ 1255: In plants with alternation of generation, meiosis occurs during
MCQ 1256: If the entire cell or organism shows the response to the stimulus of light, the phenomenon is
MCQ 1257: The mechanism that produces new generations and maintains a species is
MCQ 1258: ATP and proteins are supplied to companion cells via
MCQ 1259: For the synthesis of 10 g of glucose, a plant may need the amount of solar energy equals to
MCQ 1260: The receptors which detect stimuli of touch pressure are
MCQ 1261: Identical twins are the result of
MCQ 1262: The aggregation of individuals that perform different functions constitutes a
MCQ 1263: The defense against diseases is facilitated by the help of
MCQ 1264: Organic compounds of varying structural complexity poured directly into the blood to act on target tissues are
MCQ 1265: The effect that instantly kills the microbes is
MCQ 1266: The grey mud which gradually turns into chalk is dead
MCQ 1267: If the glomerulus part of nephrons is destroyed by pathogens, it results in the elevated levels of urea and nitrogenous waste in
MCQ 1268: The zygote contains complete information about the individual in the form of
MCQ 1269: The dense fluid-filled region which helps in producing carbohydrate molecules is called
MCQ 1270: If a tiny outgrown bud detach and grow individually on its own by asymmetric division, this is called
MCQ 1271: Auxins promote growth at a very low concentration in
MCQ 1272: If somatotrophin hormone is produced in excess during early life, it leads to
MCQ 1273: In cross-section, the gray matter in the spinal cord is seen in the shape of a
MCQ 1274: The feed of macrophages and neutrophils are
MCQ 1275: Which is true about smooth muscles?
MCQ 1276: The secretory glands of the plants are called
MCQ 1277: The female sex organs in a plant of Bryophyta is known as
MCQ 1278: After the food reaches the back of the mouth, swallowing becomes
MCQ 1279: Animals which generate heat on their own during metabolism are
MCQ 1280: The functional types of neurons are
MCQ 1281: An example of unicellular non-motile green algae is
MCQ 1282: When the walls of the duodenum are eaten away by its mucus layer, it results in a/an
MCQ 1283: Shelf fungus parasitize trees, are important decomposers of
MCQ 1284: The inflammatory chemicals which give rise to severe contractions of bronchioles in asthma are
MCQ 1285: Numerous micro-organisms which may be infectious proteins are the
MCQ 1286: The extensions of lungs which are extended in bones are known as
MCQ 1287: The indigested food in cockroaches are stored for some time in
MCQ 1288: Leaf and shoot primordia develop from
MCQ 1289: The other name for "blue-green algae" is
MCQ 1290: The cell divisions are enhanced by the effect of
MCQ 1291: Secretin stimulates the secretions that are
MCQ 1292: The nervous system of hydra is a network of neurons, present between the
MCQ 1293: The ribs and intercostal muscles constitute the walls of
MCQ 1294: The internal structure of the stem lacks
MCQ 1295: Which of the following involved sexual reproduction?
MCQ 1296: The general names for the group of diseases are
MCQ 1297: HIV target the major cells in the human body known as
MCQ 1298: If the cap of Acetabularia is removed,
MCQ 1299: The metabolically dormant bodies of bacteria are resistant to adverse physical environmental conditions are the
MCQ 1300: Ropes are made from leaves of
MCQ 1301: The stabbing paint due to injury of the proximal sciatic nerve is a disease
MCQ 1302: The earliest group of rootless plants are the one which becomes
MCQ 1303: The non-cellular part of hydra is
MCQ 1304: The increase in the intensity of light increases the rate of
MCQ 1305: Most common food poisoning is caused by bacteria
MCQ 1306: The embryo at a two-celled stage has
MCQ 1307: Compact bone constitutes the outer shell and provides an attachment site for
MCQ 1308: If biorhythms are of about 365 days, these are called
MCQ 1309: The process of reabsorption of useful constituents is done in
MCQ 1310: The argument about the enzyme, that they induce a change in its structure when a substrate combines with enzyme was highlighted in
MCQ 1311: Margulies and Schwartz have introduced a new strategy of classification to accommodate all the protists by listing how many phyla?
MCQ 1312: The specialized salt excreting organs are
MCQ 1313: Inhibitors blocking the active site by making covalent bonds are specifically known as
MCQ 1314: The endocrine system consists of how many glands?
MCQ 1315: Chemical substances which act as an inhibitor for the growth of microorganisms are called
MCQ 1316: After fertilization of ovary, the fruit is made which contain
MCQ 1317: The type of respiration which humans adopt in severe physical activities is
MCQ 1318: Hypothesis always requires a tentative explanation of
MCQ 1319: Gibberellins sometimes substitute for
MCQ 1320: Algae which serves as a "complete whole food" and contain all essential amino acids in perfect balance, is known as super
MCQ 1321: Genetic variations are produced in
MCQ 1322: Two species of Acetabularia have been identified based on
MCQ 1323: From the rhizoid of Acetabularia, a stalk arises having a
MCQ 1324: When a nerve impulse is generated in a neuron, its resting membrane potential is replaced by
MCQ 1325: Viruses are extremely small infectious agents which range in size from 250nm to
MCQ 1326: It is believed that hyponasty is due to
MCQ 1327: The light-independent reactions are termed as
MCQ 1328: The major role in movements in plants is of
MCQ 1329: The nephrons which are arranged along the border of medulla looping deep in the inner medulla are called
MCQ 1330: A dry, indehiscent fruit in which pericarp is completely fused with seed coat is called
MCQ 1331: Leaf primordial is the cells committed to become
MCQ 1332: The remodeled area of bone responds to the same set of mechanical
MCQ 1333: A fossil was found in Texas which was an early reptile, is
MCQ 1334: A transient diploid zygote is formed as a result of a reproduction called
MCQ 1335: Proteins are formed when carbon combines with nitrogen in amino acid linkages with the help of
MCQ 1336: Nutrition which is achieved on the feeding of dead organic matter and decaying bodies is called
MCQ 1337: Tuberculosis is a disease which is
MCQ 1338: Individuals of different species (animals and plants) that live together in the same habitat constitute a
MCQ 1339: The reciprocal relationship between growth and development is known as
MCQ 1340: Pasteurization helps in preserving
MCQ 1341: The bean-shaped cells in a leaf which encloses stoma are
MCQ 1342: Light is the form of energy called
MCQ 1343: The lethal disease which spreads via free sexually contact, blood infusions from an infected person and contaminated syringes is
MCQ 1344: Enzyme erepsin gives off amino acids with the help of substrate
MCQ 1345: The passive movements of the chloroplast is an example of a positive tactic movement due to
MCQ 1346: Early vascular plants lacked true leaves and
MCQ 1347: Any cell or individual of any offspring produced by asexually is termed as a
MCQ 1348: The rhizoids fix the prothallus to the soil to absorb
MCQ 1349: Bacteria which are fully dependent on their host for its nutrition are
MCQ 1350: Under-activity of parathormone causes a drop in blood calcium ions which in turn leads to
MCQ 1351: The systemic arch disappears in
MCQ 1352: In a resting neuron, K+ ions are
MCQ 1353: Modification of behavior through a diminution of response to repeated stimuli is
MCQ 1354: Another name for vasopressin is
MCQ 1355: The cells at the periphery of blastoderm are
MCQ 1356: Antibodies are manufactured by
MCQ 1357: The duration of chilling treatment in vernalization varies from
MCQ 1358: Active or action potential of neuron lasts for a
MCQ 1359: The most known disaccharide is sucrose which is a
MCQ 1360: A spore germinates at a suitable temperature after falling on moist soil and produces a
MCQ 1361: The cells responsible for the increase in the number of cells at the tips of roots and stem are
MCQ 1362: The respiratory system of hemichordates is composed of
MCQ 1363: Mesentries are prominent in the enteron of the body of the
MCQ 1364: The muscles which control the urine inside and help in urination while passing it out are
MCQ 1365: The internal ciliated opening which is immersed in a coelomic fluid is called
MCQ 1366: The size of the skull is reduced due to genetic disorder is
MCQ 1367: Flowering in pineapple is induced by
MCQ 1368: The growth of roots towards water is positive hydrotropism if it grows towards
MCQ 1369: The total gestation period in humans is about
MCQ 1370: The Irish people completely depend on their nutrition on
MCQ 1371: The type of hepatitis which is transferred by the contact with faces of the patient is
MCQ 1372: In the diaphragm on the left side of the abdominal cavity, is
MCQ 1373: The fusion of nuclei in fungi is
MCQ 1374: The female gametophyte develops into an egg after germination with healthy megaspore and produce
MCQ 1375: Alzheimer's disease was first described by Alois Alzheimer in
MCQ 1376: Immediately after fertilization, the egg undergoes a series of divisions called
MCQ 1377: The asexual reproduction in the sponge is done by the process of
MCQ 1378: Pouched mammals are called
MCQ 1379: Lysosomes are cytoplasmic organelles which are specialized in their
MCQ 1380: The kingdom protist has four major groups of eukaryotic organisms, i.e. protozoa, algae, slime molds and
MCQ 1381: Motile male gamete or sperm is also known as
MCQ 1382: Hexose is also known as
MCQ 1383: The trial and error learning is called
MCQ 1384: To remove the need of picking fruit from tree crops which one is sprayed?
MCQ 1385: Sebaceous glands protect skin against microorganism by secreting
MCQ 1386: Both the brain and spinal cord are wrapped by how many layers of membrane?
MCQ 1387: Bones and cartilages are composed of protein known as
MCQ 1388: The adrenal cortex secretes
MCQ 1389: The menstrual cycle can be divided into
MCQ 1390: There are two types of muscles in annelids based on the arrangement of
MCQ 1391: The components of the internal environment are
MCQ 1392: The total number of vertebrae in a vertebral column is
MCQ 1393: External pinnae of ear and epiglottis are formed by
MCQ 1394: The nucleus contains a network of subdivisions called
MCQ 1395: The glands which help in digestion of food in humans are
MCQ 1396: Organisms respond to the stimuli which are
MCQ 1397: Overextension of the heart is prevented by
MCQ 1398: Increase in higher mental activities of learning and memory is a result of an increase in the size of
MCQ 1399: In artificial incubators, the temperature is usually regulated between
MCQ 1400: Nissl's granules are associated with
MCQ 1401: Each testis consists of a highly complex duct system called
MCQ 1402: Cold receptors are more abundant than heat receptors
MCQ 1403: Cortisol antagonizes the action of
MCQ 1404: Organs which carry out actions or produce responses are
MCQ 1405: External Fertilization occurs in which?
MCQ 1406: In transport, Capillaries bear no
MCQ 1407: A disease which inflames the liver of human beings is
MCQ 1408: Secretions produced by ribosome are passed via endoplasmic reticulum and
MCQ 1409: High levels of cholesterol in the blood can lead to the production of
MCQ 1410: Ball and socket joint is formed by the bone
MCQ 1411: The pitcher of Sarracenia is filled with
MCQ 1412: Each type of Principal sensation pain, touch, sight, sound are called
MCQ 1413: The process of development of a haploid offspring from a haploid egg is called
MCQ 1414: Oxytocin is secreted by pituitary gland's
MCQ 1415: The serum which is produced by antitoxins in case of a snake bite venom is called
MCQ 1416: Indole-3-acetic acid (IAA) causes
MCQ 1417: Malaria in humans is caused by the apicomplexan called
MCQ 1418: All enzymes control the metabolism of the cell because they are
MCQ 1419: The initial stage of birth is the result of the stimuli from the
MCQ 1420: The function of roots is to
MCQ 1421: The location of furrow during a cell division is done by
MCQ 1422: Behavior activities occurring at regular intervals are called
MCQ 1423: Earthworm posses another type of tubular excretory system called as
MCQ 1424: If viral DNA is detached from the host's chromosome, it leads to the beginning of the lytic cycle called
MCQ 1425: Higher animals possess a higher level of
MCQ 1426: If the concentration of an enzyme is increased by two-fold, the rate of reaction would be
MCQ 1427: For every two K+ ions that are actively transported inward into the neuron,
MCQ 1428: In kingdom Animalia, Setae are the organs of
MCQ 1429: Oviducts and ovaries are both functional in
MCQ 1430: The lower two pairs of ribs are not attached to the sternum and called as
MCQ 1431: The complex interwoven filaments which delicate and feathery constitutes a multicellular body of a
MCQ 1432: At a point during the estrous cycle, estrogen exerts positive feedback which results in increased production of
MCQ 1433: The row of phalanges are attached to metacarpals which support
MCQ 1434: Dilation of blood vessels in skeletal muscles is caused by
MCQ 1435: The in folds of the membranes of the mitochondrion is called
MCQ 1436: There is gelatinous layer mesenchyme which is present between pinacoderm and
MCQ 1437: Under the central cells of the blastoderm, a pool of fluid develops giving the area a translucent appearance called
MCQ 1438: Somites are seen in the embryo of about
MCQ 1439: The male and female sex organs appear on the same prothallus in the region of under surface, this property is
MCQ 1440: The endometrium is made receptive for the implantation of a zygote by
MCQ 1441: In an average human being, heart contracts estimated
MCQ 1442: Gymno sperms cannot produce
MCQ 1443: In herbivores animals, there is no
MCQ 1444: The name of nucleic acids reflected the feature that they are isolated from their
MCQ 1445: The digestive system of cockroach comprises of
MCQ 1446: Lipase hydrolyzes fats into which?
MCQ 1447: The elements which occur in a living organism are called
MCQ 1448: Nerve impulse can be defined as a wave of
MCQ 1449: The areas which act as storage and are active metabolism sites include
MCQ 1450: The function of neuroglia is to provide
MCQ 1451: In honey bees, male or drones develop from
MCQ 1452: Rounded closely packed mass of blastomeres is called
MCQ 1453: Response in the form of contraction is shown by
MCQ 1454: The muscles fibers have an iron-containing protein called
MCQ 1455: Hydra is aquatic and diploblastic
MCQ 1456: The name Platyhelminthes means
MCQ 1457: Energy transformation in living systems is attained with the help of
MCQ 1458: At each end of the neural tube, small openings are present and called
MCQ 1459: The heterogeneous group of compounds which are linked with fatty acids is called
MCQ 1460: The displacement of a set point in the hypothalamus is due to
MCQ 1461: The hypoblast is mainly presumptive
MCQ 1462: The number of people over age 80 is
MCQ 1463: Cucumber, tomato and garden pea are
MCQ 1464: No blood cells ever leak from capillaries through intercellular spaces except some of the
MCQ 1465: All the information about the function of a cell and its genetic structure is stored in
MCQ 1466: Diploid parthenogenesis occurs in
MCQ 1467: The pairing of an irrelevant stimulus with a natural primary stimulus that elicits an automatic response is
MCQ 1468: Powdery mildews, potato wilt, apple scab are all diseases caused by
MCQ 1469: Transitions between sleep and wakefulness are influenced by certain neurons in
MCQ 1470: The function of the oxytocin hormone is to induce
MCQ 1471: The daily changes in the turgor pressure facilitate the sleeping movements in the
MCQ 1472: The two strands of DNA is a double helix structure, coiled with each other as
MCQ 1473: The main two components of blood of human being
MCQ 1474: Tremor of hands and head occurs in
MCQ 1475: The shedding of the exoskeleton is called
MCQ 1476: The movement of water molecules from an area of higher concentration to an area of lower concentration through a semi-permeable membrane is the process of
MCQ 1477: The arrangements of vascular bundles are effective in
MCQ 1478: The splitting of water molecule releasing oxygen is called
MCQ 1479: Fishes keep themselves balance in water while swimming by its
MCQ 1480: The type of RNA which acts as a machinery for the synthesis of proteins is
MCQ 1481: Bacteria which can grow with or without the presence of oxygen is known as
MCQ 1482: The animals which possess flame cells, excretory ducts and excretory pores are termed as
MCQ 1483: At the cephalic end of the primitive streak, closely packed cells form a local thickening known as
MCQ 1484: Mammals maintain a constant temperature range, which is about
MCQ 1485: The circulatory system in phylum Arthropoda and phylum Mollusca is
MCQ 1486: The nephrons are arranged in a distinct region of
MCQ 1487: A snail crawling on a sheet of glass ultimately stops responding to tapping which is known as
MCQ 1488: The organisms which lack mitosis division and use binary fission method for cell division are known as
MCQ 1489: During elongation, the cell volume increases due to uptake of
MCQ 1490: Sponge bone comprises of cells
MCQ 1491: Grapes, figs, and dates are rich in
MCQ 1492: The procedures which help to eliminate or reduce the possibility of infection is called
MCQ 1493: In the rainy season, the part of the plant act as photosynthetic organ and stores water is
MCQ 1494: The bones are hard due to the presence of
MCQ 1495: Economically the most important family which benefit both human and animal is
MCQ 1496: Just beneath the cell membrane, there are extremely thin hair-like appendages called as
MCQ 1497: The vas deferens becomes highly convoluted to form
MCQ 1498: Micrographic is the most famous work on the discovery of cell which is given by
MCQ 1499: The corpus luteum secretes the hormone
MCQ 1500: The cleaning of blood is termed as
MCQ 1501: The multicellular animals are distinguished from unicellular by name
MCQ 1502: Preparation and maintenance of the body for the state of pregnancy is done by
MCQ 1503: The behavior which enables pill bugs to reach the moist area which is required for their life is termed as
MCQ 1504: Effectors which respond by secreting various hormones are
MCQ 1505: The system of adjacent cell walls present throughout the plant roots is
MCQ 1506: The number of bacteria and its kinds vary concerning the changes in locality and
MCQ 1507: The pests are destroyed by using a living organism is attributed to the process of
MCQ 1508: Birds have developed a thick muscular organ which helps in crushing of food called
MCQ 1509: An autotrophic, small, heart-shaped and flat structure is called
MCQ 1510: The study of growth and differentiation have undergone by an animal from a zygote into a highly complex individual is called
MCQ 1511: The olfactory bulbs in telencephalon are concerned with a sense of
MCQ 1512: A cofactor and a polypeptide chain co-exist in an activated enzyme called as
MCQ 1513: In nature, p660 to p730 conversion takes place in
MCQ 1514: In a coordination system, Sensory nerve contains
MCQ 1515: The exchange of gases between organism and environment is termed as
MCQ 1516: The normal pH of the blood of a human being is
MCQ 1517: Photosynthetic prokaryotes have special photosynthetic membranes which work like
MCQ 1518: Hans Driesch in his experiment took egg of
MCQ 1519: Uterine contractions during childbirth are strongest from
MCQ 1520: In Pakistan, the soil is replenished by
MCQ 1521: Premature birth or miscarriage is caused by disturbances in the secretion of
MCQ 1522: Which are the characteristics of the differentiation phase?
MCQ 1523: Robert Koch formulated the germ theory of disease and discovered that specific bacteria which caused Tuberculosis and
MCQ 1524: In the walls of seminiferous tubules, the cells that secrete seminal fluid are called
MCQ 1525: The animal starch is called
MCQ 1526: Pain receptors are more abundant than cold receptors
MCQ 1527: Chemotropism response is seen in
MCQ 1528: Bacteria can range in size from 0.1µm to
MCQ 1529: The tuft of cilia propels interstitial fluid into
MCQ 1530: The chloroplast is present inside the leaf within tissue called
MCQ 1531: For complete removal of tapeworms which medicine is used?
MCQ 1532: The rasping tongue-like structure present on the body of mollusks is
MCQ 1533: Animals and plants have distributed themselves in a wide range of habitats due to
MCQ 1534: Rodents and Ungulates belong to which?
MCQ 1535: The function of tRNA and mRNA is to decode the information from genes into a specific
MCQ 1536: The endoskeleton is made up of
MCQ 1537: Virology deals with the study of
MCQ 1538: Germ cells in the ovary first produce
MCQ 1539: The positive hydrostatic pressure which is generated by roots is around
MCQ 1540: Leguminous plants have specialized nodules which contain nitrogen-fixing
MCQ 1541: All are wrong about Strawberry, but that it?s a
MCQ 1542: Larynx and epiglottis is well developed and present in
MCQ 1543: The number of amino acids that are found in occurring cells and tissues is
MCQ 1544: Glycogen cannot be mixed in the aqueous solution therefore it is
MCQ 1545: Hans Driesch performed his experiment on sea urchin egg in
MCQ 1546: The adrenal cortex is active all the time but especially during
MCQ 1547: The structure of a sporophyte consists of a foot, seta and
MCQ 1548: Rickets is the disease which deforms pelvis and bow legs of mostly
MCQ 1549: In the earthworm excretory system, the epithelium reabsorbs salts from
MCQ 1550: Oxytocin and antidiuretic hormone after being produced is stored in which lobe of pituitary?
MCQ 1551: Timing of any behavior results from a combination of effects of rhythmical internal process and
MCQ 1552: There are numerous thread-like filaments which are long, branched and tubular called as
MCQ 1553: The stomatal responses are signaled by the guard cells as they can sense
MCQ 1554: Liver-worts, mosses, ferns move towards archegonia following the stimulus of
MCQ 1555: In Animalia kingdom, Archaeopteryx was the size of a
MCQ 1556: Cell theory proposes that all living cells arise from
MCQ 1557: The cardiac muscles are composed of myofibrils and myofilaments of
MCQ 1558: Germination of seeds in some lettuce varieties is promoted by
MCQ 1559: The study of aging is called
MCQ 1560: The animals which have organized tissue and organ systems are
MCQ 1561: In the alternation of generations, a haploid spermatozoid fuses with a haploid egg to produce diploid
MCQ 1562: Diseases like polio, whooping cough, measles, mumps, etc. can be avoided by
MCQ 1563: The specific arrangement of highly complex proteins and polypeptide tertiary chains is found in the oxygen-carrying protein of RBC called
MCQ 1564: RNA is found in the nucleolus of the cell and DNA is found in
MCQ 1565: The killer of bacteria of a sick person is an
MCQ 1566: The components of living control system are
MCQ 1567: Salamander zygote was divided by Spemann using minute
MCQ 1568: Gene therapy repairs defective genes by isolating normal gene and inserting it into the host's
MCQ 1569: Higher chordates have a specialized notochord called
MCQ 1570: The bacteria fix nitrogen in soil converts into
MCQ 1571: The pores which help in the removal of water from the body of sponges are called
MCQ 1572: Only 20 types of amino acids can give rise to over
MCQ 1573: The animals from Grade Bilateria have well defined
MCQ 1574: The protein factories of bacteria are
MCQ 1575: The phage in which lysis of host cell takes place is
MCQ 1576: Excessive protein breakdown resulting in muscular and bone weakness is a symptom of
MCQ 1577: The liver oil which is used in medicine as a source of multivitamin (A and D) is obtained from
MCQ 1578: Embolus dislodge from its site of production and moves in the
MCQ 1579: If the herbaceous stem loses its turgidity, it may
MCQ 1580: Around 15-20 million years is the time, for the evolution of a
MCQ 1581: There are extensive stomata on the upper surface of leaves in
MCQ 1582: The sporophyte is dominant and the gametophyte is small and reduced but separate as well as independent. This development shows heteromorphic alternation of generation
MCQ 1583: The mammals which can stay under the ocean for more than two hours without coming up for air are
MCQ 1584: During the travel of nerve impulse, across the cell membrane
MCQ 1585: The inhabited part of the earth in which living organisms and non-living components co-exists is called
MCQ 1586: The hormone aldosterone is secreted by the
MCQ 1587: All the members of a clone are genetically identical until and unless there occurs a
MCQ 1588: The branch of biology in which we study living organisms, systems or processes in manufacturing and industrial area is called
MCQ 1589: The receptors which show response to cold and warmth are
MCQ 1590: The bulb-like cells which are performing excretory functions are
MCQ 1591: Diploid chromosome number is found in normal body cell whereas haploid is found in
MCQ 1592: The commercial cork is obtained from the bark of a tree-like
MCQ 1593: The requirement of the length of the dark period for cocklebur is
MCQ 1594: The well developed nervous system of Platyhelminthes composed of a network of
MCQ 1595: The nucleotide in DNA are united with one another by a linkage called
MCQ 1596: The size of intercellular spaces in the walls of lymph vessels are larger which facilitates the entry of
MCQ 1597: Between the mother and the fetus, placenta facilitates the exchange of
MCQ 1598: An organic substance which hardens the secondary cell wall is usually impregnated with
MCQ 1599: The yielded compound by the combination of a base and a pentose sugar is called
MCQ 1600: Zea mays (corn) belongs to the phylum
MCQ 1601: Skull, the vertebrae, ribs, and the sternum together make up
MCQ 1602: The modified hyphae which help to anchor saprobic fungi are known as
MCQ 1603: Chloroplast contain a green pigment called
MCQ 1604: The form of learning best known in chickens, ducks, and geese is
MCQ 1605: The segments in the body of Annelids are separated with the help of
MCQ 1606: The aqueous ground soluble part of the cytoplasm is called
MCQ 1607: One liter of the air contains oxygen about
MCQ 1608: The three main types of plastids are chloroplast, chromoplast and
MCQ 1609: In higher vertebrates, zygote, after fertilization undergoes cell division by mitosis, called
MCQ 1610: In a tobacco leaf, there are 12000 stomata per square
MCQ 1611: Sterilization is done by the use of
MCQ 1612: The cell volume during elongation increases up to
MCQ 1613: During the elongation phase of growth
MCQ 1614: Degeneration of the elastic tissues in the tunica media of blood vessels cause
MCQ 1615: Lipids are insoluble in water but it is easily soluble in
MCQ 1616: The phage tail structure of a bacteriophage is more complex than its
MCQ 1617: An external factor influencing the growth is
MCQ 1618: The amount of DNA in a germ cell (sperm or ova) is one half to that of
MCQ 1619: The products of digestion are passed on in the whole body of planarian and are done by the process of
MCQ 1620: The organ of voice in the bird is called a
MCQ 1621: In the reproduction cycle of which one, Ovoviparity occurs?
MCQ 1622: The soluble plasma protein is
MCQ 1623: The stinging cells which are organs of offense and defense are called
MCQ 1624: The hormones of the human body are transported to target sites via
MCQ 1625: The breakdown of alveoli is called
MCQ 1626: Photosynthesis occurs in the time of
MCQ 1627: In the brain, the Gray matter is made up of
MCQ 1628: The organ which lies ventral to esophagus extending in the chest cavity is a tubular structure called
MCQ 1629: Poikilotherms fluctuate more or less with
MCQ 1630: The first layer that is formed between the primary walls of neighboring cells is called
MCQ 1631: The amount of blood flow in the capillaries is regulated by the help of precapillary
MCQ 1632: The female digger wasp because of instincts
MCQ 1633: The elimination of undigested food material out of the body is called as
MCQ 1634: When HIV invades in an individual, it destroys its
MCQ 1635: Hind limbs consist of which of these?
MCQ 1636: The baby resulting from zygote as a result of in-vitro fertilization outside the female body is known as
MCQ 1637: The process of formation of germ layers is called
MCQ 1638: Fertilization in chick normally takes place just as the ovum is entering the
MCQ 1639: The message is transmitted across the synapse in the form of chemical messengers called
MCQ 1640: Hydrolytic enzymes which help in dissolving food particle are present on
MCQ 1641: Most land mammals used to raise their fur to block still air hence protect themselves against
MCQ 1642: The largest living vertebrates are known to be
MCQ 1643: The heart of class Cyclostomata have a heart with one
MCQ 1644: Food material moves to the esophagus with the help of
MCQ 1645: Chemical reactions are accelerated by high
MCQ 1646: Alcoholic fermentation and Lactic acid fermentation are
MCQ 1647: The primary male sex hormone produced by the male reproductive system is
MCQ 1648: The enzyme which dissolves the wall of a bacteria is
MCQ 1649: Cloning helps produce desired varieties of
MCQ 1650: Somatotrophin releasing factor is secreted from the hypothalamus in
MCQ 1651: Important well-known ferns are Dryopteris, Pteris Pteridium and
MCQ 1652: For the very first time, the vaccination against HIV was synthesized and was administered in humans in
MCQ 1653: In a coordination system, Reflex action is a/an
MCQ 1654: The organisms which are associated with each other by a mutual nutrition process are called
MCQ 1655: The approximate number of species that are currently known to scientists are
MCQ 1656: The capacity of human blood to carry oxygen is raised to 75 times by
MCQ 1657: Genetic variability in plants is higher due to
MCQ 1658: Through internal fertilization, offspring are produced by how many different methods?
MCQ 1659: Two shells which lie with each other, forming the shape of a petri-dish is the cell wall of
MCQ 1660: The free-living species that feed on small animals and bodies of dead and decaying is
MCQ 1661: The structure of the lungs are
MCQ 1662: The method in which fertilized egg is retained within the female's body is called
MCQ 1663: The viruses which are responsible for tumors in animals and plants are
MCQ 1664: Birds belong to which class?
MCQ 1665: Horneophyton, psilophyta, and cooksonia belong to the Tracheophytes group called
MCQ 1666: The leaf of a lycopodium is small and contains single undivided vascular supply, such leaf is called
MCQ 1667: During the cell division phase, the number of cells increases by
MCQ 1668: The discharge of blood and cell debris in case of no fertilization is called
MCQ 1669: Of all the environmental factors the two most important ones controlling the growth of plants are
MCQ 1670: The transport and returning of material from the tissues to blood is the responsibility of
MCQ 1671: When air rushes into the vacuum inside of the lungs, it constitutes the process of
MCQ 1672: The male gametes reach to embryo sac by the help of
MCQ 1673: Neurotransmitter molecules are released into
MCQ 1674: The cable containing numerous nerve fibers, the axons and dendrites is called a
MCQ 1675: The first microbe which has completely arranged genome in the sequence is
MCQ 1676: The approach in which disastrous diseases are being controlled using appropriate methods is
MCQ 1677: The organism produced as a result of cloning is genetically identical to the parent who contributed the
MCQ 1678: The more complex form of life is a product of
MCQ 1679: Vitamin deficiencies are induced in plants if they are grown in
MCQ 1680: The waste material is generated through metabolism, hence are termed as
MCQ 1681: In the reproduction system, Oviduct is also called
MCQ 1682: The branches of Crataegus give excellent wood, which can be used to make
MCQ 1683: Slime molds appear slimy and stream on decaying logs and leaf litter due to the presence of
MCQ 1684: Cloned animals cannot withstand
MCQ 1685: Flagellates rely on dead or decomposing organic matter to obtain its
MCQ 1686: Absence of which is a characteristic of the hydra?
MCQ 1687: Eutheria is class of mammals which include placental mammals including
MCQ 1688: Platelets have no pigment as well as no
MCQ 1689: The class of angiosperm which contain two cotyledons are called
MCQ 1690: The backflow of blood in veins is controlled by
MCQ 1691: In transpiration, the water leaves the cell of plants in the form of
MCQ 1692: The most simpler sugars which are sweet and highly soluble in water are called
MCQ 1693: Thickening of the uterine wall is done by
MCQ 1694: The mucous membrane of the urinogenital tract is affected in
MCQ 1695: The sperm that queen bee receives from the male is
MCQ 1696: The nucleus in Acetabularia lies in the
MCQ 1697: Any abnormality related to rhythm and conduction of heart can be diagnosed with the help of
MCQ 1698: The cartilaginous joint which is found in a growing bone is called
MCQ 1699: Nicotine may induce which of the following?
MCQ 1700: The end product of glycolysis is
MCQ 1701: Seed plants are predominantly seen all around us due to good characteristics like
MCQ 1702: The maximum oxygen can be absorbed at a level of
MCQ 1703: The class Cyclostomata includes the living vertebrates which are most primitive and lack
MCQ 1704: A pair of ovoid glandular structures responsible for the production of sperms are called
MCQ 1705: The inverse response from effectors towards external change is called
MCQ 1706: The nutritional part of a neuron is
MCQ 1707: The capacity to identify foreign invaders and take actions with the help of cells to remove that foreign invader with effectiveness, is termed as
MCQ 1708: The human brain is mainly divided into how many parts?
MCQ 1709: Cleavage of the zygote is spiral and determinate in
MCQ 1710: The cells of dinoflagellates are covered with shells of interlocking cellulose plates, which are impregnated with
MCQ 1711: In animals, with structural adaptations, have sweat glands and lungs for
MCQ 1712: Auxins tend to inhibit which of these?
MCQ 1713: The double membranous sac which encloses a human heart is called as
MCQ 1714: A stalk that connects pituitary gland to the brain is
MCQ 1715: If more than one egg is produced by the female and all the eggs are independently fertilized, it will result in
MCQ 1716: For enzyme activity in the human body, the optimum temperature is
MCQ 1717: In the digestive system, the length of jejunum is
MCQ 1718: Asthmatic patients are prone to
MCQ 1719: Feces are temporarily stored in
MCQ 1720: In a coordination system, Somatic nervous system controls
MCQ 1721: Tobacco requires the length of the dark period that is
MCQ 1722: Veins collect blood from the body and send it to
MCQ 1723: During childbirth, the baby is delivered as a result of
MCQ 1724: The plant which attracts the insect to entangle is known as
MCQ 1725: The word luteinization means
MCQ 1726: In plants, without the supply of oxygen
MCQ 1727: A commercial compound that breaks down to release methane in plants is known as
MCQ 1728: All the hormones move in the body via blood and
MCQ 1729: The two hormones produced in the hypothalamus are
MCQ 1730: In the adequate or surplus supply of water, the reabsorption in kidneys is
MCQ 1731: The ball of capillaries which surrounds the Bowman's capsule is called
MCQ 1732: Oxygen is less soluble as compared to carbon dioxide, this is
MCQ 1733: The specialized molecule which traps high energy electron and electron carriers are
MCQ 1734: The opening of bud is achieved when leaf in bud condition shows more
MCQ 1735: An intact cell body of a neuron can
MCQ 1736: Secondary growth leads to an increase in
MCQ 1737: External fertilization occurs in the
MCQ 1738: The proteins which defend the body against pathogens are called
MCQ 1739: Green algae stores energy in the form of
MCQ 1740: In 1797, vaccination was first developed by
MCQ 1741: Spemann performed experiments on zygote of
MCQ 1742: In jellyfish, poly is reduced and medusae are
MCQ 1743: The jumping impulse at the node of Ranvier is called
MCQ 1744: The modification of proteins and lipids by converting them into glycoprotein and glycolipids are done by
MCQ 1745: The most abundant and most important photosynthetic pigment is
MCQ 1746: The older sediment layers have less radioactive isotopes than
MCQ 1747: An organic molecule is a type of molecule in which a molecule is composed of
MCQ 1748: A young bird in the absence of parent may imprint
MCQ 1749: Oxytocin during childbirth particularly acts on
MCQ 1750: Inhaling the spores of a fungus which is contaminated in the soil can lead to a serious infection of lungs called
MCQ 1751: Primary tissue is added by which?
MCQ 1752: A definite shape given to the cell is by
MCQ 1753: Urea in high concentration may cause damage to fishes so they retain a protecting chemical against urea called
MCQ 1754: A statement which is given after observations and organizing data is called a
MCQ 1755: When growth has mostly ceased after adolescence, the hormone that continues to promote protein synthesis throughout the body is
MCQ 1756: The exchange of gasses through diffusion takes place when there is a difference in
MCQ 1757: The red blood cells of mammals are
MCQ 1758: The disease myxoedema is characterized by
MCQ 1759: When starches are mixed with iodine, they give a color which is
MCQ 1760: The epithelium is only two cells thick which facilitates the process of
MCQ 1761: The rhythmic contraction of the heart is controlled by
MCQ 1762: The animals which do not require to adjust osmotic state concerning their external environment, are termed as
MCQ 1763: Chondrus polyphonic whose common name is red algae belongs to the phylum
MCQ 1764: Cytochrome is oxidized by which of the following?
MCQ 1765: A person suffering from epilepsy should avoid
MCQ 1766: The mechanical process which consists of two phases inspiration and expiration is called
MCQ 1767: During dark reactions, the photosynthesis takes place by the help of certain enzymes through the cycle called
MCQ 1768: The molecular formula of a disaccharide is
MCQ 1769: Harmful chemicals and toxins are disposed of from the body by the help of
MCQ 1770: Gastrin hormone stimulated by which?
MCQ 1771: The complex cartilaginous structure present at the upper end of the trachea is called
MCQ 1772: Aphids suck phloem juices with the help of its
MCQ 1773: The method in which the young one develops within the female body and it receives nourishment from mother's blood is called
MCQ 1774: Prolactin stimulates the production of which?
MCQ 1775: A darkly stained body within a nucleus without any prominent membranous boundary is
MCQ 1776: In kingdom Plantae, the pine is a
MCQ 1777: If any artery which is supplying blood to brain leaks or discharges blood burst, such artery is called
MCQ 1778: The oxygen combines with hemoglobin in the blood and form
MCQ 1779: An animal which can survive in drastic conditions of the desert by feeding on seeds of plants containing more carbohydrates is
MCQ 1780: A less conspicuous generation which partially or completely depends upon gametophyte for its nutrition is a
MCQ 1781: The folds of ileum in the shape of finger-like outgrowths are called
MCQ 1782: If sea urchin egg at the two-cell stage is shaking to separate the two cells, they both
MCQ 1783: Reflex movement of eyes is controlled by
MCQ 1784: The shape of the pituitary gland is
MCQ 1785: Bats and hummingbirds belong to which group?
MCQ 1786: The nerves associated with head, neck and facial regions are
MCQ 1787: In the honey bee, males are haploid and produce sperms by
MCQ 1788: At high temperatures, mesophyll cells release a hormone called
MCQ 1789: From the two cells of salamander zygote, the one that kept dividing had
MCQ 1790: Species of Mimosaceae which help to break the wind pressure are
MCQ 1791: Fruit ripening is often accompanied by a burst of respiratory activity called
MCQ 1792: Actinipods are made up of which element?
MCQ 1793: The break down of food particles into smaller particles is the process of
MCQ 1794: The exchange of gases in the bark of plants Is attained by the help of
MCQ 1795: The appearance of dendrites is like that of a
MCQ 1796: Which one is the Planarian excretory system?
MCQ 1797: The molluscan body possesses which type of skeleton?
MCQ 1798: The 14 phalanges of the toe are attached to
MCQ 1799: Necrosis following the death of surrounding neural tissues in the blood vessels in the brain can block and leads towards
MCQ 1800: The metabolism of purine and pyrimidine results in the formation of a significant amount of
MCQ 1801: The vein which collects blood from the liver is known as
MCQ 1802: Lateral meristems are present in
MCQ 1803: When a person becomes ill due to infection and survives, this activity is called
MCQ 1804: Powerful growth zones found at the apices of roots and stem are called
MCQ 1805: The most toxic excretory product which quickly dissolves in body fluids is
MCQ 1806: The cells of plants in deficiency of water synthesize large quantities of proteins called
MCQ 1807: Corpus luteum starts degenerating if
MCQ 1808: The unequal branches of the stem which grew unequally at different rates given rise to different planes, this development is
MCQ 1809: Cytokinins delay aging of which?
MCQ 1810: The best remedy against an osteoporotic bone fracture is
MCQ 1811: Swelling of the neck due to deficiency of thyroxine is termed as
MCQ 1812: The fruit is developed from the ovary wall and
MCQ 1813: The cell theory was given after working independently by
MCQ 1814: The destruction of the adrenal cortex occurs in
MCQ 1815: Species of fungi that are used to give flavor, aroma, and color to cheese are
MCQ 1816: In peritoneal dialysis, the peritoneal cavity is filled with dialysis fluid through a
MCQ 1817: Less amount of nitrogen is present in
MCQ 1818: Utilization of carbon dioxide from air and water from the soil to manufacture glucose is done by
MCQ 1819: The resolution of a human naked eye is
MCQ 1820: The opening of the larynx is called
MCQ 1821: Cell elongation takes place is favored by
MCQ 1822: The number of chemical compounds from which living organisms are made is
MCQ 1823: Insulin and glucagon belong to the
MCQ 1824: Energy to the growing plants is supplied by
MCQ 1825: Melanophore stimulating hormone darkens the skin by stimulating
MCQ 1826: The presence of bony brain in chordates is called as
MCQ 1827: For cloning of an animal, the nucleus is taken from a
MCQ 1828: Mammals have a special organ for rapid heat production called
MCQ 1829: Organisms produced from a single cell by subculturing are called
MCQ 1830: Passive immunity is developed by injecting antibodies in the form of
MCQ 1831: In America, roads are made by using tar mixed with shells of
MCQ 1832: When the folding of the neural plate is visible, the embryo is termed as
MCQ 1833: The adaptive changes in individual behavior as a result of experience are termed as
MCQ 1834: The bacterial membrane is deprived of
MCQ 1835: The digesting enzyme which digest starch and glycogen is called
MCQ 1836: The activity in which larger molecules are broken down into small molecules utilizing water is known as
MCQ 1837: Microorganisms taken in along with food are killed by
MCQ 1838: The study of energy relationships and energy conversions in biological systems is termed as
MCQ 1839: The active membrane potential of a neuron is
MCQ 1840: A seed may be defined as a fertilized
MCQ 1841: Cockroach cut food into smaller particles with the help of
MCQ 1842: The receptors which respond to stimuli of light are
MCQ 1843: Fatty acids which are straight-chained are found in
MCQ 1844: The most successful group of seed plants are
MCQ 1845: The ovum, after release, is then transferred to the
MCQ 1846: Fruits and leaves have a natural protective coating of fatty acids known as
MCQ 1847: Procuticle is further hardened by which component?
MCQ 1848: Saccharomyces cerevisiae is the most common exploited
MCQ 1849: Animals maintain the concentration of salts and water in their body by adopting
MCQ 1850: The sporophytes which are differentiated into roots, stem and true leaves, constitute the plants of
MCQ 1851: In plants, when only apical buds grow and growth is suppressed in lower axillary buds, it is called
MCQ 1852: Red blood is formed in which part of the body?
MCQ 1853: The tube by which urine is passed outside the body is called
MCQ 1854: Failure to produce insulin leads to a condition called
MCQ 1855: A nucleotide is the combination of 3 subunits, i.e. a pentose sugar, a nitrogenous base and
MCQ 1856: Plants and animals which are in danger of extinct if not protected are studied under the name
MCQ 1857: All the biologists believe that virtually, all the animals have been evolved from
MCQ 1858: The process of flow of sap from the injured or cut parts of the plant with a considerable force is called
MCQ 1859: There are two types of starch which are amylose and
MCQ 1860: Atropa Belladonna is used for medicine because it is rich in
MCQ 1861: A scientist who first determined the sequence of amino acids in a protein molecule was
MCQ 1862: Fishes heart work only in one direction thus called
MCQ 1863: Cortisone hormone belongs to the family of
MCQ 1864: Today the size of a living world is
MCQ 1865: Medulla oblongata narrows down into an oval-shaped hollow cylinder called
MCQ 1866: The ability of regeneration is present in
MCQ 1867: The three sites of digestion in human beings are
MCQ 1868: The average loss of blood during childbirth is
MCQ 1869: The mechanism of enzyme activity is termed as
MCQ 1870: Stage two of differentiation involves
MCQ 1871: Protozoa ingest their food by the process of
MCQ 1872: Two molecules which belong to different categories combine to form
MCQ 1873: Lack of chlorophyll in plants is called
MCQ 1874: Biosynthesis of materials necessary for the growth of neurons is a concern of
MCQ 1875: Busra of Fabricius is found in the wall of cloacae opening of young bird which proved the role of it in
MCQ 1876: Clostridium botulinum causes a severe form of
MCQ 1877: Amylopectin starches are soluble in both hot and cold water and they have
MCQ 1878: Macromolecules help in the formation of the cell because they are
MCQ 1879: In ovoviviparous animals, the embryo receives its nourishment from
MCQ 1880: The flowers of the plant which close at night due to rapid growth in the lower side are
MCQ 1881: Growth is mainly divided into how many types?
MCQ 1882: The space between somatic mesoderm and splanchnic mesoderm is called
MCQ 1883: When the exchange of gases takes place in the lungs, it is called
MCQ 1884: Evolution of pollen tube is an important step in a land adaptation by
MCQ 1885: Vitamins fall in the category of which factor for growth?
MCQ 1886: In the cell body of the neuron, there are some specialized granules named
MCQ 1887: The inner end of nephrons is a cup-shaped swelling structure known as
MCQ 1888: Electrical impulses are sent to atrial muscles to contract both
MCQ 1889: The hormone produce their effect by
MCQ 1890: Amoeba and paramecium possess a specialized structure for removing water from the body, called
MCQ 1891: Improved storage life of bananas and grapefruits is a commercial application of
MCQ 1892: After passing a stimulus from receptors to sensory neurons, it then passes to
MCQ 1893: Cytoplasm present in the axon is called
MCQ 1894: A huge bacterium has been discovered in the intestine of brown surgeonfish and its size grow as large as 600µm by
MCQ 1895: The largest portion of the brain is
MCQ 1896: The blood vessels which carry the blood away from the heart are known as
MCQ 1897: Plasma is composed of dissolved
MCQ 1898: The fluid which is transmitted between blood bad interstitial fluid is called
MCQ 1899: A very high supply of oxygen does what in plants?
MCQ 1900: Symptoms of cretinism include which one of these?
MCQ 1901: The discoidal cap of cells above the blastocoele is called
MCQ 1902: Peptone and polypeptides are yielded by the hydrolysis of
MCQ 1903: Parthenogenesis has the advantage of accelerating the normal
MCQ 1904: Homeostasis contributes to the evolutionary process by compelling
MCQ 1905: The system which is responsible for detecting change and signaling control system is called
MCQ 1906: The processes conducting impulse away from the cell body are termed as
MCQ 1907: Nissl's granules are present in which part of neurons?
MCQ 1908: In diabetes, the patient produces large amounts of urine that are
MCQ 1909: Parthenocarpic fruits with no seeds are
MCQ 1910: In apical, dominance action of auxins is enhanced by
MCQ 1911: The trapped insect in insectivorous plants are decomposed by
MCQ 1912: Tissue culturing can only be done for
MCQ 1913: Hydra is a small animal and it belongs to the phylum
MCQ 1914: The process of isolating various components of a cell is called
MCQ 1915: Root primordia develop from the root cambium called
MCQ 1916: The shell of eggs produced by birds and turtles have a high concentration of
MCQ 1917: When there is no exchange between leaves and the atmosphere due to the balance of respiration and photosynthesis, this condition is known as
MCQ 1918: Constipation is caused by the over absorption of
MCQ 1919: The respiration in fish is done by the help of paired
MCQ 1920: Artificial mode of reproduction in plants is
MCQ 1921: The example of bacteria which can be used as a pollution indicator is
MCQ 1922: Skull is made up of which of these?
MCQ 1923: The process of fusion of egg and sperm results in the formation of
MCQ 1924: The outer portion of the spinal cord is made up of
MCQ 1925: The gastrocoel cavity is now termed as
MCQ 1926: Labor pain is caused by contractions in the walls of
MCQ 1927: The word tropic is a Greek word in which 'Tropos' mean
MCQ 1928: The painful burning sensation in chest due to the backflow of acidic chyme into the esophagus is termed as
MCQ 1929: The meristematic cells are located at the
MCQ 1930: Intermediate/Relay is another name of
MCQ 1931: The release of ovum from the follicle or ovulation is induced by
MCQ 1932: The body of sponges contain special out layer made up of cells called
MCQ 1933: A single parental organism which gives rise to offspring by mitotic cell division is called
MCQ 1934: The presence of metabolic waste in the body can cause serious hazards hence they should be
MCQ 1935: The relaxed period of heart chambers is known as
MCQ 1936: The flagellated collar cells constitute the layer called
MCQ 1937: The type of behavior that depends on the hereditary material is
MCQ 1938: The old xylem when not being used to transport deposit strange chemicals which take place in
MCQ 1939: The process of engulfing solid particles in the form of vacuoles is called
MCQ 1940: The technique in which cambium tissue is provided nutrients to grow and differentiate into a new plant is called
MCQ 1941: The female reproductive cycle may be disturbed by
MCQ 1942: NAA (naphthalene acetic acid ) helps in
MCQ 1943: Which of the following is the lifestyle of the hydra?
MCQ 1944: The successive cells in pericardial muscles are separated with the help of junctions called as
MCQ 1945: A bacterial cell contains 70% of which?
MCQ 1946: The percentage of water in an average brain cell is
MCQ 1947: In case of no actual danger, the alarm calls of rodents are ignored. This behavior comes under
MCQ 1948: Cyanobacteria use accessory pigments called
MCQ 1949: The follicle-stimulating hormone in males stimulates the development of germinal epithelium of