Twin Studies of Gender Differences Have Found That

Multiple Choice

Twin studies of gender differences have found that

A) monozygotic twins are more alike than dizygotic twins in terms of instrumental and expressive traits, suggesting biology influences gender roles.
B) dizygotic twins are more alike than monozygotic twins in terms of instrumental and expressive traits, suggesting biology does not influence gender roles.
C) monozygotic twins and dizygotic twins are equally similar in terms of instrumental and expressive traits, suggesting biology influences gender roles.
D) monozygotic twins and dizygotic twins are equally similar in terms of instrumental and expressive traits, suggesting biology does not influence gender roles.