Social Studies

Geovanni Washington

19 July, 01:23

As a result of a mutation, the DNA sequence AGT - TGA - CAT changes to AAT - TGA - CAT. Which best describes the mutation?

A. It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.

B. It is a deletion in which the DNA base, G, was replaced with a different DNA base, A.

C. It is a substitution in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.

D. It is a deletion in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.