Suppose a Research Study Shows That People Who Suffer from Severe

Multiple Choice

Suppose a research study shows that people who suffer from severe depression are homozygous for a mutation in the hypothetical DEP gene.Individuals without this form of depression have the following sequence at the beginning of the translated region of their DEP genes 5'-ATG ACG TTT GAA ATT CAG TCT AGA-3'(MET THR PHE GLU ILE GLN SER ARG) .Affected individuals have the following sequence 5'-ATG ACG TTT GAA ATT TAG TCT AGA-3'(MET THR PHE GLU ILE STOP) .The mutation identified is most likely a:

A) missense.
B) gain of function.
C) nonsense.
D) frameshift.
E) deletion.