Viruses Quiz Questions and Answers PDF - 33

MCQ 161: What is the estimated annual loss due to the destruction of horticulture from plant viral infections?

1. 15 billion dollars
2. 1 billion dollars
3. 5 million dollars
4. 10 million dollars

MCQ 162: The cell cycle checkpoint is present in all the following phases except

1. m phase
2. g1 phase
3. g2 phase
4. s phase

MCQ 163: Which of the following is generally thought to promote transcription by opening the chromatin structure?

1. DNA methylation
2. histone methylation
3. histone acetylation
4. phosphate addition

MCQ 164: Which of the following results from cystic fibrosis?

1. thick mucus
2. blocked arteries
3. tumor
4. loss of neurons

MCQ 165: The cell in which an endosymbiont life is called

1. host cell
2. hold cell
3. control cell
4. replicative cell