Research indicates that a monozygotic twin has almost a ____ risk of developing schizophrenia when the other twin develops the disorder.

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Research shows that if one monozytic (identical) twin develops schizophrenia, the other twin has about a 50% chance of developing the disorder as well. This high concordance rate suggests a significant genetic component to the risk of schizophrenia.

Research Indicates That a Monozygotic Twin Has Almost a ____