Since females have two X chromosomes (XX), a healthy gene on one can usually compensate for a faulty one on the other. The Royal Connection
While it remains a lifelong challenge, hemophilia is no longer the death sentence it was in the Victorian era; it is now a manageable chronic condition. bleeder's disease
Also known as "Christmas Disease" (named after the first patient diagnosed with it), caused by a lack of Factor IX . Since females have two X chromosomes (XX), a
The most common type, caused by a lack of Factor VIII . bleeder's disease