Which of the following explains gradations of severity in people with schizophrenia (from mild to severe) and explains that the risk of having schizophrenia increases with the number of affected relatives in the family?

Question

Quizplus · Accepted Answer

The quantitative trait loci model of schizophrenia postulates that the disorder is influenced by multiple genes, each of which contributes a small amount to the overall risk of developing the disorder. This model also suggests that there are gradations of severity in people with schizophrenia, with the risk of having schizophrenia increasing with the number of affected relatives in the family.

Which of the Following Explains Gradations of Severity in People