人类的xy两条染色体既有同源区段又有非同源区段.下列叙述正确的是 A性染色体上的等位基因只存在于Ⅱ同源区bⅠⅡⅢ区段上的基因 Template




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tomski人类的xy两条染色体既有同源区段又有非同源区段.下列叙述正确的是 a性染色体上的等位基因只存在于Ⅱ同源区bⅠⅡⅢ区段上的基因 coloring