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Genetics and Genomics

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Virus Genetics: DNA Versus RNA Viruses

GENES-N7GBYT

The Baltimore classification of viruses is based on the mechanism of mRNA production by different viruses. Viruses must generate mRNAs to produce proteins and replicate themselves.

A virus that can use its RNA genome directly as messenger RNA is classified as a

A

retrovirus.

B

double-stranded DNA virus.

C

positive sense RNA virus.

D

negative sense RNA virus.