Of a normal male marries a carrier, what is the probability that they will produce a male child who will be a hemophiliac?
- ZirpLv 77 months ago
If they have a boy, the chance of that boy being a hemophiliac is 50%. He either has the healthy X-chromosome of his mother or the faulty one. the Y-chromosome he got from his father cannot compensate the faulty X-chromosome (and the X-chromosome of his father would have made the boy a girl)