Author Question: The likelihood that a child born to two schizophrenic parents will become schizophrenic is less than ... (Read 83 times)

bobbie · **on:** Jun 22, 2018

The likelihood that a child born to two schizophrenic parents will become schizophrenic is less than 50 percent. This suggests that

A) schizophrenia is not produced by a single gene.
B) schizophrenic parents rarely marry.
C) schizophrenia is a metabolic disorder.
D) schizophrenia is produced by a single dominant gene.
E) schizophrenia is associated with infertility.

Question 2

All of the following statements about the genetic basis of schizophrenia are true EXCEPT that

A) adoption studies indicate a biological basis for schizophrenia.
B) the concordance rate for schizophrenia is higher for monozygotic than for dizygotic twins.
C) a person with a schizophrenia gene will always develop schizophrenia.
D) several genes may be involved in schizophrenia.
E) genes impart a susceptibility to develop schizophrenia.

lkoler · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Answer: A
Rationale: The likelihood that a child born to two schizophrenic parents will become schizophrenic is less than 50 percent. This suggests that schizophrenia is not produced by a single gene.

Answer to Question 2

Answer: C