The manner in which individuals develop phenylketonuria is an example of:

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Phenylketonuria is a genetic disorder caused by a mutation in the gene that encodes the enzyme phenylalanine hydroxylase. This enzyme is responsible for converting the amino acid phenylalanine into tyrosine. In individuals with phenylketonuria, the mutation in the gene results in a deficiency of phenylalanine hydroxylase, which leads to a build-up of phenylalanine in the blood. This build-up of phenylalanine can cause a number of health problems, including intellectual disability, seizures, and behavioral problems. The manner in which individuals develop phenylketonuria is an example of genotype-environment interaction because the development of the disorder depends on both the genotype of the individual (i.e., the presence of the mutation in the gene) and the environment (i.e., the presence of phenylalanine in the diet).

The Manner in Which Individuals Develop Phenylketonuria Is an Example