PKU (phenylketonuria) is a disorder that:

Question

Quizplus · Accepted Answer

PKU is a genetic disorder that prevents the body from breaking down phenylalanine, an amino acid found in protein. This leads to a buildup of phenylalanine and its byproducts in the body, which can damage the brain and cause intellectual disability if left untreated. Therefore, PKU prevents the body from assimilating protein. Option A is incorrect as there is no established correlation between PKU and an increased incidence of schizophrenia. Option B is incorrect as not all individuals with PKU will have mental retardation if they receive appropriate treatment. Option D is incorrect as there is no evidence to suggest that PKU is made worse by stressful family circumstances.

PKU (Phenylketonuria) Is a Disorder That