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Huntington's Disease Is an Autosomal Dominant Trait

Question 40

Multiple Choice

Huntington's disease is an autosomal dominant trait. Given the pedigree below, if individual IV- 2 has three children with a normal man, what is probability that exactly two of the three children would have the disorder? Huntington's disease is an autosomal dominant trait. Given the pedigree below, if individual IV- 2 has three children with a normal man, what is probability that exactly two of the three children would have the disorder? A) 3/8 B) 7/8 C) 0 D) 1/2 E) 1/8


A) 3/8
B) 7/8
C) 0
D) 1/2
E) 1/8

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