Example:

"However, it should not affect policy decisions concerning the prevention of crime. Suggestions that inner city youth should be screened for biological predisposition toward crime or violence and then treated accordingly are scary for a number of reasons."

http://209.85.173.104/search?q=cache:ABkM_t8DwikJ:serendip.b...

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"The study found that children predisposed to aggression who were relaxed before playing became more aggressive afterwards while the more hyperactive children became less aggressive.

Prof Devilly said much of the research linking aggressive behaviour to violent video games had been unconvincing."

http://www.smh.com.au/news/National/Most-kids-unaffected-by-...

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"However, men with the “aggression” genes aren’t necessarily all cads; genetics appears to be predictive only if men have hostile attitudes and fathers who never completed high school. Moreover, a genetic predisposition toward aggression could be rebuffed by a mother who nurtures her infant, suggests another study involving primates."

http://209.85.173.104/search?q=cache:Chl_xzbN0j0J:www.upmc.c...