What type of virus is the poliovirus?
Correct answer: D. Single-stranded RNA
- A. Double-stranded DNA
- B. Single-stranded DNA
- C. Double-stranded RNA
- D. Single-stranded RNA
Explanation
Poliovirus is a single-stranded RNA (ssRNA) virus, specifically positive-sense RNA, meaning its genome can directly act as mRNA for protein synthesis. It does not have DNA or double-stranded RNA, and it is non-enveloped with only a capsid and RNA genome.
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