The ideal way to look at genetic contributions to personality traits would be to examine
A)brothers and sisters
B)parents and their children
C)reaction ranges
D)identical and fraternal twins
E)dominance hierarchies

Question

Quizplus · Accepted Answer

Identical and fraternal twins provide the most direct way to study the genetic contributions to personality traits. Identical twins share 100% of their genes, while fraternal twins share about 50%, similar to regular siblings. Comparing similarities and differences in personality traits between these two types of twins allows researchers to estimate the genetic contribution to these traits.

The Ideal Way to Look at Genetic Contributions to Personality