I had this question in Kaplan FL and I have a question on the terminology.
If a woman who is a carrier for hemophilia A marries a man who does not have the disease, what is the probability their first daughter will be a carrier?
I know hemophilia is X-linked and I know mom is XH Xh and dad is XH Y which gives XH XH, XhXH, XH Y, and Xh Y. I got this wrong because I did 1/2 (chance of child being female) x 1/2 (chance of female being Xh XH), but the answer is just 50%. I'm wondering the terminology for when I would have to factor in the chance of the first child being a certain sex for these types of questions.
If a woman who is a carrier for hemophilia A marries a man who does not have the disease, what is the probability their first daughter will be a carrier?
I know hemophilia is X-linked and I know mom is XH Xh and dad is XH Y which gives XH XH, XhXH, XH Y, and Xh Y. I got this wrong because I did 1/2 (chance of child being female) x 1/2 (chance of female being Xh XH), but the answer is just 50%. I'm wondering the terminology for when I would have to factor in the chance of the first child being a certain sex for these types of questions.