(Video: Genes and personality) Researchers have examined the possible genetic influence on criminality by studying

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Researchers have used twin studies, specifically studying twins who were separated at birth and raised apart, to explore the genetic influence on criminality. This allows them to compare the rates of criminality in pairs of identical twins (who share 100% of their genetic material) and pairs of fraternal twins (who share only 50% of their genetic material).

(Video: Genes and Personality) Researchers Have Examined the Possible Genetic