A twin study is conducted to examine the role of genetics and environment on the fondness of individuals for chocolate. Which result would lead to the conclusion that genetic factors are important in the development of this trait?

Question

Quizplus · Accepted Answer

If identical twins are more similar on the trait than are fraternal twins, it suggests that there is a genetic component to the fondness for chocolate. This is because identical twins share 100% of their genes, while fraternal twins only share 50% on average. Therefore, if identical twins are more similar, it points towards genetics playing a role in the development of the trait.

A Twin Study Is Conducted to Examine the Role of Genetics