Twin research studies looking at the genetic basis of personality revealed that the trait of has a larger genetic component than does the trait of

The correct answer is social potency, achievement.

Twin studies are commonly used to study the environmental or genetic effect on the development of personality or general psychological traits. Social potency is a term referring to the need for social dominance and having an impact on other people. It has been shown that the personality trait related to the need for achievement does not have a strong genetic component. This is contrary to the trait of social potency which was found to be greatly affected by the genetic background.