题干

人的X染色体和Y染色体大小、形态不完全相同,但存在着同源区(Ⅱ)和非同源区(Ⅰ、Ⅲ)如图所示。下列有关叙述中错误的是

A:Ⅰ片段上隐性基因控制的遗传病,男性患病率高于女性

B:Ⅱ片段上基因控制的遗传病,男性患病率等于女性

C:Ⅲ片段上基因控制的遗传病,患病者全为男性

D:由于X、Y染色体互为非同源染色体,故人类基因组计划要分别测定

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D

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