一个基因型为BbDd的初级精母细胞经减数分裂产生的配子类型为   A.

一个基因型为BbDd的初级精母细胞经减数分裂产生的配子类型为  

A.4          B.8        C.2      D.1

答案

C

【解析】

试题分析:一个初级精母细胞经减数分裂产生4个精子,是两种类型,且同源染色体要分开,如果一种是BD,另一种一定是bd;如果一种是Bd,另一种是bD;答案选C

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