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Is the gene that causes hemophilia recessive or dominant? Use the image to explain your reasoning.

User Jpaljasma
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I don't see a provided imagine but I can answer your question.

The gene that causes hemophilia is recessive. Hemophilia is caused by a mutation in the gene that codes for clotting factors VIII (hemophilia A) or IX (hemophilia B). The normal version of these genes is dominant, meaning that it masks the effects of the mutant gene. But when there are two copies of the mutant gene, one inherited from each parent, the lack of clotting factors leads to the bleeding disorder. The individual must inherit two copies of the gene (one from each parent) in order for the disorder to manifest. Hemophilia is often inherited in an X-linked recessive pattern, which means that the gene responsible for the disorder is located on the X chromosome.

User Gabaros
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