What is the risk for a person to inherit an autosomal-dominant genetic disease-causing allele from a parent who is heterozygous if the disorder has a penetrance factorof 75%?
A)100%
B)75%
C)50%
D)25%

Question

Quizplus · Accepted Answer

The risk for inheriting an autosomal-dominant allele from a parent who has the allele is always 50%. The inheritance risk is not changed by penetrance, but expression can be.

What Is the Risk for a Person to Inherit an Autosomal-Dominant