The key difference between twin studies and adoption studies is that in adoption studies
A) the adopted siblings are treated as twins.
B) identical twins are separated at birth and raised apart.
C) adoptive parents do not know whether their adopted children are twins.
D) nothing is known about the genetic makeup of the biological parents.

Question

Quizplus · Accepted Answer

Adoption studies often involve identical twins separated at birth and raised in different environments, allowing researchers to disentangle the effects of genetics and environment on various traits and behaviors.

The Key Difference Between Twin Studies and Adoption Studies Is