某男孩色盲他的祖父和父亲均为色盲祖母母亲和外祖父均色觉正常则该男孩色盲基因的传递途径是a.外祖母→母亲→男孩b.祖父→父亲→男孩c Template




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tomski某男孩色盲他的祖父和父亲均为色盲祖母母亲和外祖父均色觉正常则该男孩色盲基因的传递途径是a.外祖母→母亲→男孩b.祖父→父亲→男孩c coloring