Huntington disease is governed by autosomal dominant inheritance. What is the likelihood that a person who has

Huntington disease is governed by autosomal dominant inheritance. What is the likelihood that a person who has one heterozygous affected parent and one normal parent will develop the disease?





a) 50%


b) 75%


c) 0% (impossible)


d) 100% (certain)

Huntington disease is governed by autosomal dominant inheritance. What is the likelihood that a person who has
a) 50 %





Because a child receives one gene from each parent. The heterozygous affected parent has one normal gene and one affected gene. This parent must give one of the two to his/her child, therefore, the probability is 50%.
Reply:a. Hh X hh= Hh
Reply:50%