is hemophilia only in male
Hemophilia Causes. 1  Men have only one X chromosome. 2  Women have two X chromosomes. 3  If a woman is a carrier, she has a 50% chance that her sons will have hemophilia. 4  A man who has hemophilia has a 100% chance that his daughters will be carriers, since they must inherit the defective x chromosome from the father. 5  The transmission of this gene to ...