Question

Phenylketonuria (pku) is an inherited disease caused by an autsomal recessive allele. if two individuals who are carriers of pku have two children, what is the probability that neither child will have pku? give your answer as a fraction or a decimal.

Answer 1

It's 25 percent as it's Aa plus Bb which gives 4 combinations and one of them is the answer. thus 1/4 equals 25percent