ABNORMAL BEHAVIOR
SCHIZOPHRENIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increases
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decreases
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Either A or B
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None of the above
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Detailed explanation-1: -Your chances are highest–50%–if you have an identical twin with the disorder. But some people with schizophrenia have no history of it in their family. Scientists think that in these cases, a gene may have changed and made the condition more likely.
Detailed explanation-2: -Affecting about 1 percent of the population, schizophrenia is known to be as much as 90 percent heritable, yet discovering how specific genes work to confer risk has proven elusive, until now. A team of scientists led by Steve McCarroll, Ph. D.
Detailed explanation-3: -Among biological factors, genes play an important role. Twin studies have shown that genetic factors account for about 80 percent of an individual’s risk of developing schizophrenia.