Hemophilia

bleeders disease is a sex-linked hereditary blood clotting dis redact. The bloods softness to clot results in excessive bleeding, even from refined injuries. The malady is caused by a lack of blood proteins, c bothed elements, which participate in blood clotting. There are lead types of haemophilia; haemophilia A, B and C. Hemophilia A is the most(prenominal) frequent roll of the complaint and is found in 80 pct of both haemophiliacs. It is caused by a lack of federal agent VIII. The consequence most common form is haemophilia B, which is caused by the absence of factor IX. Twenty percent of the mountain with this disease study hemophilia B. Hemophilia C is caused by the lack of factor XI and exactly a small percentage of the people with the disease have this. The gene for hemophilia is located on the X chromosome. Hemophilia is a recessive sex-linked trait. Males more than ordinarily get hemophilia because they only need to inherit wizard bad X chromosome, wher eas women need to inherit two. Hemophilia A and B almost always occur in boys and hemophilia C can occur in both boys and girls. iodin in 10,000 men have hemophilia A or B. The disease is passed from mother to son through whiz of the mothers genes.

near womanishs who have the defective gene are only carriers and attest no signs of the disease. Of the children of a female carrier and a shape male, one fractional of the boys will have hemophilia and half of the girls will be carriers. Of the children of a customary female and a male hemophiliac, all of the boys will be normal and half of the girls will be car riers. Of the children of a hemophiliac fema! le and a normal male, all of the boys will have hemophilia and all of the girls... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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