Causes
Hemophilia is caused by a faulty gene inherited from one or both parent. It is called an inherited sex-linked recessive gene. The gene is located on the X chromosome.
Females carry two copies of the X chromosome. If the faulty gene is only on one X, the normal gene on the second X will take over. As a result, they will not get the disease. Instead they are carriers of the gene. The risk for their male offspring to inherit the gene is 1 in 2 or 50%. The chance that their female offspring will inherit the gene is also 50%. These offspring will be carriers like their mothers.
It is possible for a female to have hemophilia. For this to happen she must inherit the faulty gene from both her mother and her father.
Males carry only one X chromosome. If they get the faulty gene the disease will develop.
Genetic Outcome Possibilities
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2012 EBSCO Publishing All rights reserved.
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