同卵双胞胎性状十分相像除此之外没有两个同胞兄弟或同胞姊妹在遗传上完全相同其原因主要是 A 基因突变 b基因重组 c环境影响 d Template




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tomski同卵双胞胎性状十分相像除此之外没有两个同胞兄弟或同胞姊妹在遗传上完全相同其原因主要是 a 基因突变 coloring