MCAT Question A Day - 5/21/14 - Answer!
Which of the following events does NOT play a role in the life cycle of a typical retrovirus?
A. Viral DNA is injected into the host cell.
B. Viral DNA is integrated into the host genome.
C. The gene for reverse transcriptase is transcribed and the mRNA is translated inside the host cell.
D. Viral DNA incorporated into the host genome may be replicated along with the host DNA.
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A is correct. A retrovirus contains RNA which is reverse transcribed to DNA and then incorporated into the host cell genome.
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