As the Result of Exposure to a Mutagen,cytosine Is Substituted

Multiple Choice

As the result of exposure to a mutagen,cytosine is substituted for thymine in one strand of DNA.Upon subsequent DNA replication,one of the daughter cells will have a GC pair in this position instead of an AT pair.This is called a(n) __________ mutation.

A) transversion
B) transition
C) frameshift
D) insertion