Final answer:
Hemophilia is a genetic disorder characterized by the inability of the blood to clot properly. It is caused by a deficiency of certain clotting factors. Hemophilia A and hemophilia B are the most common types of hemophilia, caused by a deficiency of factor VIII and factor IX respectively.
Step-by-step explanation:
Hemophilia is a genetic disorder characterized by the inability of the blood to clot properly due to the inadequate production of certain clotting factors.
There are different types of hemophilia, with the most common being hemophilia A, which is caused by a deficiency of factor VIII, and hemophilia B, which is caused by a deficiency of factor IX. Hemophilia is linked to the X chromosome and is typically inherited from a carrier mother to her male offspring.