2 years ago

Why do rna viruses appear to have higher rates of mutation?.

1 answer:

5 0

The higher per-site mutation rates of RNA viruses can be explained in part by the RNA-dependent RNA polymerases (RdRp) that replicate their genomes. Unlike many DNA polymerases, RdRp do not have proofreading activity and are thus unable to correct mistakes during replication.

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