Question

Examine the two strands of DNA below. Which kind of mutation occurred?Original strand: AGC GTA CCC TACNew strand: AGC GTA ACC TAC(1 point)Responsesdeletiondeletionframeshiftframeshiftsubstitutionsubstitutioninsertion

Answer 1

The original strand is AGC GTA CCC TAC, and the new strand is AGC GTA ACC TAC. Upon comparing the two strands, the third codon has changed from CCC to ACC.

This is an example of a **substitution** mutation, where one base (C) has been replaced by another base (A) in the DNA sequence.

So the correct answer is: **substitution**.