Consider the following statements :
1. Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes.
2. Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.
Which of the statements given above is/are correct?
Correct Answer: Option B
Explanation
1. Statement 1 is incorrect. Adenoviruses typically possess double-stranded DNA (dsDNA) genomes. Retroviruses, like HIV, possess single-stranded RNA (ssRNA) genomes, which they convert into dsDNA using reverse transcriptase after entering a host cell.
2. Statement 2 is correct. The common cold is a syndrome caused by various viruses, and adenoviruses are one of the known causative agents. AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV), which is classified as a retrovirus.
Therefore, only statement 2 is correct.
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