Urban Environment, Genetics, and Crime

Gene-environment interactions are important for the development of much human behavior. We examined the possibility that a genetic propensity to criminal behavior interacts with the type of environment in which an individual is raised. Using a cohort of adoptees, we found evidence for independent contributions of biological parent criminality (genetic influence) and urban environment rearing to prediction of adoptee criminality, but no evidence for a gene-environment interaction involving these factors.