Which of the following is an RNA virus:
Correct answer: A. Influenza virus
- A. Influenza virus
- B. Herpes virus
- C. HBV
- D. Pox virus
Explanation
Influenza virus contains RNA as its genetic material, specifically segmented single-stranded RNA. Herpesvirus, hepatitis B virus, and poxvirus are DNA viruses, so students often select HBV because they remember hepatitis as a viral disease without distinguishing its genome type.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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