Questions and Answers
Retroviruses are single-stranded, negative sense RNA viruses
False
Retroviruses are distinguished from all other RNA viruses by the presence of reverse transcriptase
True
The viral envelope of retroviruses contains 72 spiked knobs
True
Retroviruses have a cone-shaped, icosahedral core, containing the major capsid protein CA (p24)
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Retroviruses are haploid, containing only one copy of positive sense ssRNA genome
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