The assumption that MZ and DZ twins are raised in equally similar environments can be problematic. Which of the following is a problem?
A) DZ twins may be treated more alike than identical twins.
B) MZ twins purposefully join different clubs and have different friends.
C) MZ twins may share more of their environment than DZ twins.
D) All of these are correct.

Question

Quizplus · Accepted Answer

MZ twins (identical twins) often share more of their environment than DZ twins (fraternal twins), which can confound studies that assume both types of twins experience equally similar environments.

The Assumption That MZ and DZ Twins Are Raised in Equally