问答题
计算题
性连锁的隐性基因导致红绿色盲。已知某平衡群体中有1／10的男性是色盲的。（1）女性中有多少是色盲的？（2）为什么色盲患者男性比女性多？多多少？（3）有多少婚配的家庭，他们的子、女各有一半是色盲？（4）有多少婚配的家庭，他们的孩子都是正常的？（5）在不平衡的群体中，红绿色盲基因在女性中的频率是0．2，在男性中的频率是0．6。经过一个世代的随机婚配，有多少女性后代是色盲？男性后代呢？（6）在（5）中，男性和女性后代的红绿色盲的等位基因频率是多少？
【参考答案】
（1）女性中色盲的比例是0，因为红绿色盲是X染色体上的隐性遗传病，女性需要两个隐性基因才会表现出色盲，而男性只有一个X染......
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