Keith and Kirk are identical twins who were separated at birth and raised in different parts of the country in different environments. When as adults they were reunited, researchers compared them on several psychological characteristics. Compared to identical twins that have been raised together, Keith and Kirk probably have
A)even more characteristics in common than if they were raised together
B)the same level of similarity from those raised together
C)fewer characteristics in common because of different environmental influences
D)as much in common on their psychological characteristics had they been fraternal twins

Question

Quizplus · Accepted Answer

Identical twins raised apart, like Keith and Kirk, tend to have fewer characteristics in common compared to those raised together due to the influence of different environments on their development.

Keith and Kirk Are Identical Twins Who Were Separated at Birth