DNA突变 野生型基因 T-C-GHA-C-T-G-T-A-C-G 的类型 - A-G-CET-G-A-C-A-T-G-C 碱基对的置换 移码突变 (substitution) (frameshift mutation) 转换 插入 T-C-G-G-C-T-G-T-A-C-C T-C-G-A--C-T-G-I-A-C-G A-G-C-C-G-A-C-A-I-G-O A-G-C--C-G-A-C-A-T-G-C 颠换 缺失 -T-C-G-T-C-T-G-T-A-C-G T-C-G-C-T-G-T-A-C-G- 4-G-(-4G-A-C-4-TGC- A-G-C-G-A-C-A-T-G-C-