Many studies suggest that schizophrenia
A) is characterized by a strong hereditary influence.
B) is seldom seen in family clusters.
C) is solely a result of environmental stress.
D) is caused by a single gene.

Question

Quizplus · Accepted Answer

Schizophrenia has a significant hereditary component, as evidenced by genetic studies, including family, twin, and adoption studies, which show that the risk of schizophrenia is higher in individuals who have a first-degree relative with the disorder.

Many Studies Suggest That Schizophrenia