Twin Studies of the Heritability of Schizophrenia Generally Show That

Multiple Choice

Twin studies of the heritability of schizophrenia generally show that

A) there is a 50 percent difference in the genomes between those with schizophrenia and those without it.
B) 90 percent of twins who inherit genes for schizophrenia will develop symptoms.
C) monozygotic twins tend not to inherit genes for schizophrenia.
D) the heritability of schizophrenia is about 50 percent.