The best way to study the relative contribution of heredity and environment is to compare
A) identical twins reared together and apart.
B) adopted children to their adoptive and biological parents.
C) identical and fraternal twins.
D) fraternal twins reared together and apart.

Question

Quizplus · Accepted Answer

Comparing identical twins reared together and apart allows researchers to isolate the effects of environment, as the genetic makeup is the same in both scenarios.

The Best Way to Study the Relative Contribution of Heredity