Chapter 18-19

Last update by mayurcooled on 04/23/2014
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Why do RNA viruses appear to have higher rates of mutation?



A. Replication of their genomes does not involve the proofreading steps of DNA replication.
B. RNA viruses replicate faster. C. RNA viruses are more sensitive to mutagens. D. RNA nucleotides are more unstable than DNA nucleotides. E. RNA viruses can incorporate a variety of nonstandard bases.

Answer:
A. Replication of their genomes does not involve the proofreading steps of DNA replication.

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