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Cell Biology Practice Test 141

DNA Tools and Biotechnology Quiz Questions and Answers PDF - 141

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DNA Tools and Biotechnology Questions and Answers PDF Download: Quiz 141

MCQ 701: The sticky ends of fragments produced by restriction enzymes can be joined by

  1. protease
  2. isomerase
  3. DNA ligase
  4. helicase

MCQ 702: In which of the following Extranuclear genes are present?

  1. mitochondria
  2. ribosomes
  3. endosomes
  4. lysosomes

MCQ 703: Which of the following is an example of chemical mutagen?

  1. X rays
  2. Ultraviolet (UV) rays
  3. amino acid analog
  4. nucleotide analog

MCQ 704: The operon is switched off by a protein called

  1. operator
  2. terminator
  3. repressor
  4. stopper

MCQ 705: Which of the following cells are infected by HIV?

  1. b cells
  2. helper t cells
  3. macrophages
  4. neutrophils

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