Question

Huntington's disease (hd) is a neurodegenerative genetic disorder involving an autosomal dominant mutant allele with high penetrance. if a father's mother had hd, what is the probability that his first child will also have hd?

Answer 1

100% the child will also have HD, as HD is caused by the DOMINANT mutant allele. 4/4

Answer 2

100% the child will also have HD, as HD is caused by the DOMINANT mutant allele. 4/4