問題詳情
28. A couple is planning to have children. The man is colorblind (xcb,y) and the woman, who is not colorblind, isa carrier for color blindness (xcb,X). What is the probability that their first child will be colorblind?
(A)25%
(B)50%
(C) 75%
(D)100%
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增