DNA Test

Last update by Katie on 06/26/2013
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Folk singer Woody Guthrie died of Huntington's disease, an autosomal dominant disorder. Which statement below must be true?
A. His sons will develop Huntington's disease but not his daughters
B. All of his children will develop Huntington's disease
C. His daughters will die of Huntington's disease but not his sons
D. It is very likely that at least one of Woody Guthrie's parents also have had the allele for Huntington's disease
E. There is not enough information to answer the question

Answer:
D. It is very likely that at least one of Woody Guthrie's parents also have had the allele for Huntington's disease

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