During twin studies it is most common:
A)to assess behavioral similarities of identical twins compared to non-twin siblings.
B)to determine behavioral similarities of identical twins compared to that of fraternal twins.
C)to conduct genetic studies of the difference between identical twins in their genetic makeup.
D)To compare adopted fraternal twins to each other.

Question

Quizplus · Accepted Answer

Twin studies typically involve comparing identical twins, who share 100% of their genes, to fraternal twins, who share only 50% of their genes on average. This allows researchers to assess the extent to which genetic factors contribute to behavioral similarities and differences. Comparing identical twins to non-twin siblings or conducting genetic studies of differences between identical twins would not provide the same information about genetic influences on behavior. Comparing adopted fraternal twins to each other could also provide insight into genetic influences, but it is less common in twin studies.

During Twin Studies It Is Most Common