Regarding Genetic Factors in Schizophrenia, Which of the Following Statements

question 113

Multiple Choice

Regarding genetic factors in schizophrenia, which of the following statements is false ?

• A)When one identical twin has schizophrenia, the other twin has a 45% to 50% chance of having the disorder.
• B)About 13% of people with a schizophrenic parent develop the disorder themselves.
• C)The closer the genetic relationship a person shares with a schizophrenic individual, the greater the likelihood that the person will have or develop schizophrenia.
• D)Investigators have identified a single gene that is responsible for creating a genetic predisposition for schizophrenia.
• E)Heredity plays an important role in schizophrenia, but biological and environmental factors also play important roles.

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