An Inherited Metabolic Disorder Called Phenylketonuria (PKU) Can Result in Serious

Multiple Choice

An inherited metabolic disorder called phenylketonuria (PKU) can result in serious problems in infancy. The chance that two parents who are heterozygous will have a child with PKU is 25%.Which of the following terms best applies to the inheritance pattern for PKU?

A) codominant
B) dominant
C) recessive
D) sex-linked