Many retroviruses have sequences complementary to the 3' end of the tRNA molecules present in the host cell infected by the virus. What is the purpose of the complementarity?
A. The tRNA acts as a primer for DNA synthesis by reverse transcriptase.
B. The tRNA activates the reverse transcriptase.
C. The tRNA prevents binding of integrase until after the double-stranded DNA is delivered to the nucleus.
D. The tRNA is needed for proper compacting of the RNA genome.
E. None of the choices given is correct.
A
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