Identical twins Ilyse and Lauren both have a gene for Trait H. The gene for Trait H is expressed only when a child eats rice before the age of 2. Ilyse and Lauren are separated at birth, and Ilyse lives in Japan, where babies begin eating rice at an early age. Lauren lives in Canada, and she is not given rice before the age of 2. Ilyse develops Trait H, whereas Lauren does not develop the trait. This is an example of:

Question

Quizplus · Accepted Answer

This is an example of genotype-environment interaction because both twins have the gene for Trait H, but only Ilyse develops the trait because she was exposed to the environmental factor of eating rice before the age of 2.

Identical Twins Ilyse and Lauren Both Have a Gene for Trait