Question

Which is true of mutations?

A.
Mutations maintain genetic continuity.

B.
Mutations do not result in protein synthesis.

C.
Mutations can introduce phenotypic variation.

D.
Mutations prevent translation and transcription.

Answer 1

C. Mutations can introduce phenotypic variation.

Explanation: Mutations alter DNA sequence, which can change gene products or their regulation and thus produce new phenotypes (beneficial, neutral, or deleterious). The other choices are incorrect: mutations do not generally "maintain genetic continuity," they often change it; they do not necessarily stop protein synthesis (many still produce proteins, sometimes altered); and they do not always prevent transcription or translation.