Synonymous codons protect against mutation because
A)the encoded amino acid changes to a smaller one.
B)the encoded amino acid changes to a larger one.
C)the encoded amino acid does not change.
D)they are exposed to oxidants.

Question

Quizplus · Accepted Answer

Synonymous codons code for the same amino acid, so a mutation in the third position of the codon will not result in a change in the amino acid sequence. This helps protect against deleterious mutations. A and B are incorrect because they suggest there is a change in the amino acid, which is not the case for synonymous codons. D is incorrect as it is unrelated to the protective effect of synonymous codons.

Synonymous Codons Protect Against Mutation Because