在两对等位基因自由组合的情况下，F1自交后代的性状分离比是12:3:1，F1测交后代的性状分离比是（）_刷题宝

题干

在两对等位基因自由组合的情况下，F1自交后代的性状分离比是12:3:1，F1测交后代的性状分离比是（）

A：1:3

B：3:1

C：2:1:1

D：1:1

上一题下一题 0.0难度选择题更新时间:2019-07-16 09:05:39

答案(点此获取答案解析）

C

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