下列基因型的个体哪一个必定是纯合体（） A．Hh �

下列基因型的个体哪一个必定是纯合体（）

A．Hh B．DB C．AD D．EE

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下列基因型的个体哪一个必定是纯合体（ ） A．Hh �

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下列基因型的个体哪一个必定是纯合体（） A．Hh �