Both individuals of a couple are heterozygous for an autosomal trait or condition. What is the likelihood that they would have an affected child?

Question

Quizplus · Accepted Answer

When both parents are heterozygous for an autosomal trait, the Mendelian inheritance pattern predicts that there is a 25% chance for each child to be homozygous recessive (affected), based on the Punnett square analysis.

Both Individuals of a Couple Are Heterozygous for an Autosomal