Genetic Factors of Aggression

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1. Extra Y chromosomes in males leads to...

  • Increased aggressive behaviour
  • Increased testosterone levels, which is associated with aggressive behaviour
  • Low testosterone levels which reduces aggressive behaviour
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Other questions in this quiz

2. Which study found that genetic mutation in mice caused violence in the mice?

  • Coccaro et al.
  • Plomin et al.
  • Young et al.
  • Hutchings and Mednick

3. Who found that 50% variance in aggressive behaviour was due to genetic influence?

  • Carey et al.
  • Coccaro et al.
  • Hutchings and Mednick

4. Theilgaard's initial research found?

  • Inmates with an extra Y chromosome had increased aggressive thought patterns and decreased non-aggresive thought patterns
  • Only difference in males with an extra Y chromosome and their normal counterparts was height
  • There was a significant number of adopted individuals with criminal convictions that had biological parents with criminal history
  • Male members in a family that showed violent all had a defect MAOA gene and low levels of MAOA produced

5. Issue with genetic factors of aggression in terms of real world application

  • Provides an excuse for violent crimes, takes away their responsibility for the crime, this causes distress for the victims and their families and friends and is damaging for society as a whole
  • Mandel said that the theory was monocausal
  • Must be generalised with caution as its too simplistic


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