Now notice what happened. There's a big difference between this result and this result. So because in this case, we had a frame shift mutation because we only inserted a single nucleotide that shifted the reading frame and that changed all the amino acids that were produced after our mutation. But in this case, what we essentially do, we do not actually shift the reading frame. What we do is we simply insert a single amino acid in this case. But all the amino acids that are produced after the inserted amino acid are exactly the same as before.