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The gene for ...

No serious scientist now believes there is a 'gene for criminality' carried only by people who break the law; equally there is not a 'gene for addiction'. But genes may influence your personality, and it may be that people with certain types of personality are more likely to fall into these groups. Genes may predispose you to certain behaviour, but they don't determine your personality.

Genes may influence your personality.
Mark Pallen, Queen's University Belfast

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