by Q. Consider the following statements:
UPSC Civil Services Examination (Prelims) 2025 – General Studies Paper I
Which one of the following is correct in respect of the above statements?
(a) Both Statement II and Statement III are correct and both of them explain Statement I
(b) Both Statement II and Statement III are correct but only one of them explains Statement I
(c) Only one of the Statements II and III is correct and that explains Statement I
(d) Neither Statement II nor Statement III is correct
Answer: (a) Both Statement II and Statement III are correct and both of them explain Statement I
Explanation:
Statement I is incorrect because viruses are abundantly present in ocean waters, and marine ecosystems contain a very large number of viruses, especially bacteriophages.
Statement II is incorrect because bacteriophages are viruses that specifically infect bacteria and are among the most common biological entities on Earth.
Statement III is incorrect because viruses actively alter the transcriptional machinery of host cells to promote viral replication and suppress host gene expression.
Therefore, none of the given statements are correct, making option (d) None the correct answer.
Answer: (a) Both Statement II and Statement III are correct and both of them explain Statement I
