Siblings and dizygotic twins share only 50 % of their segregating genes.
同卵双生双胞胎和双卵双生双胞胎分享仅50%的基因.
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The concordance is around 20 % for dizygotic twins.
该一致性约为20%,异卵双胞胎.
The two embryos that dizygotic, not genetically identical. Therefore, the twins are not identical.
两个胚胎来自双卵, 遗传学上不一样, 所以这种双胎是不一样的.
"dizygotic twins"
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