Genetics

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  • Genetics
    • XYY
      • Men born with extra y chromosome
        • Heightens aggression further
        • Height, testosterone levels and low intelligence
      • 3% of prisoners compared to 0.1% of gen pop
        • Eco validity
      • Witken
        • No link, only to low intelligence
          • More likely to be caught
        • More likely to commit crimes
          • Non violent
        • Deterministic
        • Reductionist
    • MAOA
      • Regulates MAOA enzyme
        • Breaks down seratonin, melatonin and dopamine
          • Neurons communicatemore effectively
          • Excess leads to aggression
      • Brunner
        • Dutch family
          • Only males affected (X)
            • Females have 1 working gene (XX)
      • Cases
        • Turned off X chromosome in mice
          • Females unaffected but males were aggressive
        • Males cannot control neurotransmitter levels
        • Animal research
        • Ethics

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