What do studies of monozygatic (MZ) and dizygotic (DZ) twins indicate?
A) There is a significantly higher risk for suicidal behavior among MZ twin pairs than among DZ twin pairs.
B) MZ twin pairs who suffer child abuse are more likely to engage in antisocial activity than DZ twin pairs.
C) If one member of a twin pair was delinquent, so was the other, and the effect was greater for MZ twin pairs.
D) Studies indicate all these findings.

Question

Quizplus · Accepted Answer

Studies have shown that if one member of a twin pair is delinquent, the other is more likely to be as well, with a stronger effect observed in monozygotic (MZ) twins compared to dizygotic (DZ) twins, suggesting a genetic influence on delinquent behavior.

What Do Studies of Monozygatic (MZ) and Dizygotic (DZ) Twins