You should let us see what the choices are because it’s impossible to know
Answer:
The answer is D (between sentences 2 and 3)
Explanation:
I did the quiz
<span>Insertion of one of two bases shifts the entire codon and changes all coding regions from there on out. Introducing three bases will place a new amino acid into the protein and can change the overall structure and binding regions, but it will for the most part be the same protein. Adding in those two will change every amino acid after that point, making it longer, shorter and possibly a completely new protein.</span>