defined:

A sex-linked inherited bleeding disorder that generally only affects males. The disorder is characterized by a tendency to bleed spontaneously or at the slightest injury because of the lack of certain clotting factors in the blood.

explained:

Listen to a detailed explanation. (Requires the free RealPlayer download)

Dr. Richard Morgan, formerly of the National Human Genome Research Institute's Clinical Gene Therapy Branch, defines hemophilia.

related
terms:

inherited, protein, sex-linked

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