![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
一对夫妇都正常,生了一个白化病的男孩,如果他们再生一个女孩,是正常的概率是()
A.75%
B.25%
C.37.5%
D.66.6%
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、37.5%
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.75%
B.25%
C.37.5%
D.66.6%
C、37.5%
A.1/91/8
B.4/90
C.1/41/8
D.1/91/9
A.该夫妇的后代中,含有血友病基因的概率为1/2
B.妻子的白化病基因和血友病基因都来自于母亲
C.该夫妇所生女孩都不患血友病,男孩可能患血友病
D.白化病基因和血友病基因的遗传都遵循基因的分离定律
A.①③
B.②④
C.②③
D.①④
A.9/16
B.3/4
C.3/16
D.1