There has been a great deal of research, using a wide variety of methods, examining the concordance rates for disorders such as schizophrenia and bipolar disorder. These studies have generally revealed higher concordance rates in ______ than in __________.

Question

Quizplus · Accepted Answer

The studies examining concordance rates for disorders such as schizophrenia and bipolar disorder have generally revealed higher concordance rates in monozygotic twins (identical twins who share 100% of their genetic material) than in dizygotic twins (fraternal twins who share only 50% of their genetic material). Therefore, the correct answer choice is E (monozygotic twins; dizygotic twins).

There Has Been a Great Deal of Research, Using a Wide