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.
Answers: 3
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As a result of a mutation, the DNA sequence AGT - TGA - CAT changes to AAT - TGA - CAT.
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