Benji has the genotype for phenylketonuria.Which of the following statements is true?

Question

Quizplus · Accepted Answer

Phenylketonuria (PKU) is a genetic disorder where the body is unable to break down the amino acid phenylalanine. This leads to a build-up of phenylalanine in the body, which can cause intellectual disability if left untreated. However, if someone with PKU avoids consuming phenylalanine (usually by following a strict low-protein diet), they can have normal intelligence. Therefore, choice C is the correct answer. Choice A is incorrect because whether or not someone with PKU has an intellectual disability depends on whether or not they avoid phenylalanine. Choice B is incorrect because PKU typically surfaces in infancy and must be treated from birth, not in middle age. Choice D is unrelated to PKU.

Benji Has the Genotype for Phenylketonuria