Mutations that allow viruses to replicate under one set of conditions but not under another set of conditions are known as __________ mutations.

Question

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Conditional lethal mutations only allow viruses to replicate under certain conditions, but not others. Suppressor mutations reverse the effects of previous mutations, lethal mutations prevent replication altogether, silent mutations do not affect the resulting phenotype, and nonsense mutations result in premature termination of the protein.

Mutations That Allow Viruses to Replicate Under One Set of Conditions