All of the following statements are true of the hemophilias EXCEPT:

A. They are inherited as sex-linked genes on the X chromosome.
B. Females with the recessive hemophilia gene on one chromosome are carriers.
C. Since males inherit one X and one Y, if the Y chromosome carries the recessive hemophilia gene, the disease is expressed.
D. Hemophilia B is also called Christmas disease.


Answer: C

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