The DNA sequence 5′ ATGGGGGACACC 3′ encodes the amino acids Met Gly Asp Thr.A mutation changes the sequence to 5′ ATGGGTGACACC 3′, but the same amino acids are encoded.What type of mutation has occurred?
A)frameshift mutation
B)missense mutation
C)silent mutation
D)nonsense mutation

Question

Quizplus · Accepted Answer

This is a silent mutation because the change in the DNA sequence does not alter the amino acid sequence of the encoded protein. The codon GGG was changed to GTG, both of which can code for Glycine (Gly), leaving the amino acid sequence unchanged.

The DNA Sequence 5′ ATGGGGGACACC 3′ Encodes the Amino Acids