Final answer:
Hemophilia is a genetic disorder that affects blood clotting. Hemophilia A is caused by a deficiency of factor VIII, and hemophilia B is caused by a deficiency of factor IX. Hemophilia C is a rare condition caused by a chromosome defect.
Step-by-step explanation:
Hemophilia is a genetic disorder that affects the body's ability to control blood clotting. There are different types of hemophilia, and one type, called hemophilia A, is caused by a deficiency of factor VIII, while another type, called hemophilia B, is caused by a deficiency of factor IX. Both of these types of hemophilia are linked to the X chromosome and are typically passed from carrier mothers to their male offspring. Hemophilia C is a rare condition caused by a chromosome defect and is not related to sex. It is important for people with hemophilia to receive regular infusions of clotting factors to prevent bleeding.