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【单选题】
等位基因A-a组成的遗传平衡群体,A基因频率是0.8,那么Aa基因型频率为A.
0.2
B.
0.16
C.
0.32
D.
0.64
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A.
正确
B.
错误
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A.
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B.
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C.
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D.
802. lx
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