如图是人类某种遗传病的家族系谱图该病受一对等位基因a和a控制请据图回答.1该病的致病基因位于 染色体上由 性基因控制.2Ⅱ2的 Template




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tomski如图是人类某种遗传病的家族系谱图该病受一对等位基因a和a控制请据图回答.1该病的致病基因位于 染色体上由 性基因控制.2Ⅱ2的 coloring