X-Linked Recessive Genetic Defects
There are several X-linked (or sex-linked) recessive genetic disorders, (hemophilia, muscular dystrophy) which are inherited through a genetic defect on an X chromosome. A female has 2 X chromosomes, one she inherited from her mother and one she got from her father. A male has an X chromosome from his mother and a Y chromosome from his father. If a woman has the defect on one of her X chromosomes, and the father's X chromosome is normal, there is a 25% chance for each pregnancy to produce: an unaffected girl; a girl who carries the defect; an unaffected boy; or a boy with the disorder.
Related Images
• Blood Cells
• Blood Clots
• X-Linked Recessive Genetic Defects - How Boys are Affected
• X-Linked Recessive Genetic Defects - How Girls are Affected
Related Articles
• Duchenne Muscular Dystrophy
• Hemophilia B
Review Date : 12/13/2001
Reviewed By : A.D.A.M. Medical Illustration Team
|
