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October 21, 2014

Homework Help: science, biology

Posted by maggie r on Sunday, October 21, 2007 at 2:49pm.

Hemophilia is a hereditary disease that prevents a persons blood from clotting correct;y. The gene responsible for blood clotting is located on the X chromosome of the sex chromosome pair (X and Y. This is called x-linked inheritance. The dominant gene is H and the recessive causing hemophilia is h. Anyone with the dominant gene will not inherit hemophilia. Mother (X^h, X^H) and father (X^H and Y) have children X^H X^H, H^H X^h, X^H Y, and X^h Y. What are the chances of a child having hemophilia. WHy?

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