What are the chances of a person with hemophilia to pass the disease to their offspring?

Answer 1

Hemophilia is passed down from mother to son. It is extremely

rare for a woman to have hemophilia. It is necessary, though, for

a woman to be a carrier of the disorder for her son to acquire this

disorder. Females have two X chromosomes whereas males only

have one. When a boy is born, he takes one X chromosome from

his mother and one Y chromosome from his father. Therefore, he

can only get hemophilia through his mother.

Example One:

Mother(Carrier)+Father(Non-Affected)=50% chance of their son

acquiring the disorder and 50% chance of their daughter being a

carrier.

Example Two:

Mother(Non-Affected)+Father(Hemophiliac)=All sons will be

non-affected and all daughters will be carriers.

Answer 2

If you are taking a standard genetics class the answer is probably that it is x-linked recessive so all of the daughters of an affected males will be carriers and half of the sons of carrier females will have it (and half the daughters of carrier females will be carriers).

In real life the genetics can be more complicated and so it is recommended that all of the children have factor levels checked.

Answer 3

Yes, hemophilia is a genetic disease.