The strand of DNA used in the previous problem undergoes a mutation, such that the second C from the 3' end is changed to a T. The mutant DNA is shown below. What would change in the polypeptide?
Mutant DNA: ...3' A C T A A G T C T 5'...
A) no change
B) polypeptide would be 1 amino acid shorter
C) polypeptide would be 1 amino acid longer
D) 1 amino acid would substitute for another
E) translation would terminate within this stretch