Consider the following statements: I. No virus can survive in ocean waters. II. No virus can infect bacteria…

Consider the following statements: I. No virus can survive in ocean waters. II. No virus can infect bacteria. III. No virus can change the cellular transcriptional activity in host cells. How many of the statements given above are correct?
  1. Only one
  2. Only two
  3. All the three
  4. None

Solution

Viruses thrive in ocean waters (I wrong). Bacteriophages infect bacteria (II wrong). Viruses routinely alter host cell transcription (III wrong). None of the statements is correct.

Asked in: UPSC Prelims 2025

Practice more Biology & Health questions on Aicharya