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Both Parents Are Heterozygous for the Autosomal Recessive Tay-Sachs Disease

Question 29

Multiple Choice

Both parents are heterozygous for the autosomal recessive Tay-Sachs disease.If three children in a row were born with Tay-Sachs disease,what are the chances that the next child will have Tay-Sachs disease?


A) 25%
B) 50%
C) 75%
D) 100%
E) 0%

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