Which one is not an RNA virus?
Correct answer: A. Smallpox virus
- A. Smallpox virus
- B. Mumps and measles viruses.
- C. Influenza virus
- D. Polio virus
Explanation
Option A is correct. Mumps, measles, influenza, and polio viruses all contain RNA as their genetic material. The poliovirus is a small, non-enveloped RNA virus, while influenza is a small, enveloped RNA virus. Smallpox virus, on the other hand, is a large, enveloped virus with a double-stranded DNA genome.
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