One form of hemophilia is caused by a sex- linked recessive gene.Assume that a man with hemophilia marries a phenotypically normal woman whose father had hemophilia.What is the probability that they will have a daughter with hemophilia? Note: In this problem,you must include the probability of having a daughter in your computation of the final probability.

Question

Quizplus · Accepted Answer

The man with hemophilia has the genotype X^hY. The woman, being phenotypically normal but with a father who had hemophilia, is a carrier with genotype X^HX^h. The probability of having a daughter is 1/2, and the probability that the daughter inherits X^h from both parents (X^hX^h) is 1/2. Therefore, the probability of having a daughter with hemophilia is 1/2 * 1/2 = 1/4.

One Form of Hemophilia Is Caused by a Sex- Linked