Huntington's Disease Is an Autosomal Dominant Trait

question 53

Multiple Choice

Huntington's disease is an autosomal dominant trait. Given the pedigree below, if individual IV- 4 has three children with a normal woman, what is probability that they would have at least one child with the disorder?

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

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