A grandfather, age 47, has just been diagnosed with Huntington's disease, which is caused by a dominant allele. His wife is 55 and healthy. His daughter, age 25, now has a 2-year-old son. No one else in the family has the disease. What is the probability that the daughter will contract the disease?

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Jameson Herring

15 November, 14:18

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Elsa Kim · Answer 1

The disease is a dominant allele which means he could have a dominant allele or two dominant alleles so there is at least a 25% change