Only by studying identical twins raised in separate environments can scientists uncover the role of genes vs. environment in the development of a specific trait. Comparing the occurrence of the trait in identical vs. fraternal twins yields little usable data.

Question

Quizplus · Accepted Answer

Comparing identical and fraternal twins, even when raised in the same environment, is a valuable method because it helps to distinguish the effects of genetics from the environment. Identical twins share more genetic material than fraternal twins, so differences in the occurrence of traits between these groups can provide insights into the role of genetics versus environment.

Only by Studying Identical Twins Raised in Separate Environments Can