Researchers have found that if one identical (monozygotic)twin suffers from schizophrenia,the other twin has a 50% chance of developing that condition.In fraternal (dizygotic)twins,however,if one twin has the condition than the other a 27% chance of developing the disorder.These results provide evidence that there may be a strong __________ component to schizophrenia.
A) environmental
B) heritability
C) diathesis
D) chemical

Question

Quizplus · Accepted Answer

The fact that identical twins have a higher chance (50%) of developing schizophrenia if one twin has it compared to fraternal twins (27%) suggests that genetics plays a significant role in the development of schizophrenia. Therefore, the best answer is heritability (B). Environmental factors (A) may also play a role, but the question specifically asks for the "strong" component, which is likely to be genetic. Diathesis (C) is a general term used to describe a predisposition or vulnerability to a particular disorder, which may be caused by genetic or environmental factors, and chemical (D) is too vague to be a correct answer choice in this context.

Researchers Have Found That If One Identical (Monozygotic)twin Suffers from Schizophrenia,the