Question

Solve the following genetic problems using the Punnet method: Phenylketonuria, a metabolic disease in humans, is caused by a recessive allele, k. If two heterozygous carriers of the allele marry and plan a family of five children:

(a) What is the chance that all their children will be unaffected?

Answer 1

I'm not a geneticist but I believe that would be zero chance. Look up the Punnet method and draw the possible match ups.