A member asked:

I'm a hemophiliac (b) and i have it and i'm a girl, my father has it but my mother doesn't have or carry it... how is this possible?

A doctor has provided 1 answer
Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

Mom carrier of gene: Recessive hemophilia gene is carried on x chromosome. When father has hemophilia and mother is carrier. A 25% chance of having son with hemophilia a 25% chance of having a son with normal blood clotting a 25% chance of having daughter who is carrier a 25% chance of having daughter wits hemophilia. Your ;mother, carrier of gene, but does not clinical have hemophilia but can pass on to children.

Answered 6/14/2014

4.5k views

Thank

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