Author Question: Studies of the offspring of nonschizophrenic co-twins from discordant twin pairs suggest that A) ... (Read 73 times)

armygirl · **on:** Jun 22, 2018

Studies of the offspring of nonschizophrenic co-twins from discordant twin pairs suggest that

A) genetic factors cause schizophrenia, while environmental factors are essentially unimportant.
B) the heritability of schizophrenia involves the transmission of a single dominant gene.
C) a genetic predisposition to schizophrenia may remain unexpressed in some individuals unless it is
released by some unknown environmental factors.
D) environmental factors play a more important role than genetic factors in the origin of schizophrenia.

Question 2

Harold and Tanya both have a wide range of schizophrenic symptoms that came on rather suddenly.
Harold's symptoms have lasted for eight months; Tanya's have lasted only eight weeks. According to the
DSM-IV their diagnoses should be

A) schizophreniform disorder for Harold; brief psychotic disorder for Tanya.
B) undifferentiated schizophrenia for Harold; schizophreniform disorder for Tanya.
C) schizoaffective disorder for Harold; schizophreniform disorder for Tanya.
D) disorganized schizophrenia for Harold; undifferentiated schizophrenia for Tanya.

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

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