The modern treatment for PKU is an example of a gene-environment interaction because it involves
A) altering the genome of the mother before fertilization.
B) control of the amount of phenylalanine in the child's diet.
C) surgical intervention before birth.
D) control of the type of mating behavior the child can have after puberty.

Question

Quizplus · Accepted Answer

The modern treatment for PKU involves controlling the amount of phenylalanine in the child's diet, which is an example of a gene-environment interaction. PKU is a genetic disorder that affects the body's ability to break down phenylalanine, an amino acid found in many foods. If left untreated, high levels of phenylalanine can cause brain damage and other neurological problems. Controlling the amount of phenylalanine in the diet is necessary for individuals with PKU to prevent these complications. This is an example of how the environment (diet) can interact with a person's genes (PKU) to affect their health.

The Modern Treatment for PKU Is an Example of a Gene-Environment