A mutation that changes the third position in a CUU codon to a C would
A) profoundly change the protein's conformation.
B) result in a frameshift mutation.
C) shorten the protein.
D) have no effect on the protein.
E) also change the first two positions.

Question

Quizplus · Accepted Answer

Since the third position in a codon is a "silent" mutation, meaning it does not change the amino acid that is coded for, changing the third position in a CUU codon to a C would still code for the same amino acid (leucine) and therefore, have no effect on the protein.

A Mutation That Changes the Third Position in a CUU