Question

Which of the following statements about the biology of schizophrenia is true?

1) Schizophrenia is caused by a single gene mutation.
2) Schizophrenia is a contagious disease.
3) Schizophrenia is a result of childhood trauma.
4) Schizophrenia is a neurological disorder characterized by abnormal brain structure and function.

Answer 1

It’s a neurological disorder characterized by abnormal Brian structure and function

Answer 2

Schizophrenia is a neurological disorder featuring abnormal brain function and is not solely caused by a single gene mutation, childhood trauma, or contagion; it involves genetic and environmental factors.

Step-by-step explanation:

Among the provided statements about the biology of schizophrenia, the true statement is that schizophrenia is a neurological disorder characterized by abnormal brain structure and function. Schizophrenia is not caused by a single gene mutation; rather, it is thought to have a complex etiology involving multiple genetic factors and environmental stresses.

Adoptive studies show that a combination of high genetic risk and a disturbed home environment can increase the likelihood of developing schizophrenia, suggesting an interplay between genetics and environment. Schizophrenia is not a contagious disease, nor is it solely caused by childhood trauma.

It is associated with neurotransmitter dysfunctions, particularly in dopamine and glutamate signaling, which underscores its nature as a mental illness with biological underpinnings.