See below: There is only one mutated copy of the gene needed for a person to be affected. Each affected person usually has one affected parent. There is a 50% chance that a child will inherit the mutated gene. It is commonly seen in western european descent than Asian or africian ones.
Answered 2/19/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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