Which is an example of an insertion mutation that changes all of the amino acids that follow the mutation?
1) CAG - TTC - ACG mutates to CAG - TTA - CAC - G
2) CAG - TTC - ACG mutates to CAG - TTC - ACC - ACG
3) TAC - CAT - GGC mutates to AAC - CAT - GGC
4) TAC - CAT - GGC mutates to TAC - CAT - GG