Molly and Milly are identical twins.Molly has been diagnosed with schizophrenia.Which statement about Milly is true?
A) Milly will eventually be diagnosed with schizophrenia.
B) Environmental factors will play a large role in whether Milly is ever diagnosed with schizophrenia.
C) Genetic factors alone will determine whether Milly is ever diagnosed with schizophrenia.
D) Milly will never develop schizophrenia.

Question

Quizplus · Accepted Answer

While genetic factors do play a significant role in the development of schizophrenia, environmental factors such as traumatic experiences or substance abuse can also influence whether or not an individual will be diagnosed with the disorder. Therefore, it is not a guarantee that Milly will develop schizophrenia even though she has an identical twin who has been diagnosed with the disorder.

Molly and Milly Are Identical Twins