Hemophilia is a disease caused by a gene found on the X chromosome. Therefore, it is reffered to as a sex-linked disease. The recessive allele causes the disease. A man with hemophilia marries a woman that is homozygous dominant for the trait.
Make a key for the trait. XH=_____ Xh=_____
Illustrate using a Punnett square the probability that their children will have the disease.
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What is a hemophilia carrier?
A daughter gets an X chromosome from her mother and an X chromosome from her father. Suppose the X chromosome from her mother has the gene for normal blood clotting. Suppose the X chromosome from her father has the gene for hemophilia.
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Explanation:
Haemophilia disease are as explained:
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