Question

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

Which best describes the mutation?

It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.
It is a deletion in which the DNA base, G, was replaced with a different DNA base, A.
It is a substitution in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.
It is a deletion in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.

Answer 1

It is a substitution because of technically g is supposed to turn in to a c regularly and since it turned to an A it is a substitution

Answer 2

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

Step-by-step explanation:

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