Guest guest Posted May 19, 2005 Report Share Posted May 19, 2005 Hi , UPD #7 is Uniparental Disomy of the #7 chromosone. It is when your child has 2 #7 chromosones from you and none from his father. This is a know cause of RSS. However, it is present in only about 10% of the people with RSS according to the literature. It can be detected by a blood test. If you saw a geneticist, this is one test for RSS that the doctor should have done. I hope this helps. Ken M Quote Link to comment Share on other sites More sharing options...
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