一杂合子(Dd)植株自交时,含有隐性配子的花粉有50%的死亡率,则自

一杂合子(Dd)植株自交时,含有隐性配子的花粉有50%的死亡率,则自交后代的基因型比例是(   )

A.111      B.441   C.231       D.121

答案

C

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