Suppose a researcher studied the occurrence rates of a specific mental illness in monozygotic and dizygotic twins.She finds that in monozygotic twins,if one twin suffers from mental illness,the other twin is also likely to have the mental illness.However,this does not appear to apply to dizygotic twins.What conclusion should the researcher draw from this evidence?

Question

Quizplus · Accepted Answer

The fact that the occurrence rates of the mental illness are higher in monozygotic twins compared to dizygotic twins suggests that the illness has a significant genetic component. This is because monozygotic twins share 100% of their genetic material, while dizygotic twins share only around 50%. Therefore, the higher incidence rates in monozygotic twins suggest that genetic factors play a role in the development of the mental illness.

Suppose a Researcher Studied the Occurrence Rates of a Specific