<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>
C. It is important to keep fighting the Civil War in order to preserve the union of the United States. Abraham Lincoln did not want all of the soldiers to have died for nothing.
