据调查,某小学学生中的基因型及比例为XBXB(42.32%)、XBXb(7.36%)、XbXb(0.

据调查,某小学学生中的基因型及比例为XBXB(42.32%)XBXb(7.36%)XbXb(0.32%)XBY(46%)XbY(4%),则在该群体中Bb的基因频率分别为

A6%8%                          B8%92%      

C78%92%                        D92%8%

答案

D

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