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Hemophilia is a sex-linked trait in humans. That means that the gene that is responsible for it resides on the X chromosome. Hemophilia is a hereditary disorder characterized by the failure of the blood to clot properly. As a result, such individuals suffer from excessive bleeding. Sometimes it results in death.

Here are the questions:

a. Have scientists pinpointed the genes which affect hemophiliacs?

b. Is there a cure?

Solution Preview

Yes, it is know that defects in genes for factor VIII and factor IX result in hemophilia because patients lack the proteins essential for clotting. Patients with hemophilia A lack the blood clotting protein, factor VIII, and those with hemophilia B lack factor IX. ...