Question

A DNA segment is changed from -AATTAG- to
-AAATAG-. This is called a
a. frameshift mutation
b. substitution (I think this is it?)
c. insertion
Thanks! x

Answer 1

a. framshift mutation

Answer 2

Thanks!

Answer 3

@mazefordays090 Not quite right, it's a substitution mutation as a nucleobase in the sequence is being replaced.
A frameshift mutation happens when a nucleobase is inserted or deleted which will cause an error in the codon reading.

Answer 4

Ahh… thanks. I was just rereading the textbook and substitution is what I came up with.