Genetic Factors of Aggression

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1. Which study found that inmates with an extra Y chromosome had increased aggressive thought patterns and decreased non-aggresive thought patterns?

  • Miles and Carey
  • Theilgaard
  • Hutchings and Mednick
  • Plomin et al.
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Other questions in this quiz

2. What did Plomin et al find?

  • There was a significant number of adopted individuals with criminal convictions that had biological parents with criminal history
  • In a replication of Bandura's bobo doll study there was no difference in MZ and DZ aggressive behaviour
  • Genetic mutation in mice causes violence
  • 50% variance in aggressive behaviour was due to genetic influence

3. Which study found that male members in a family that showed violent all had a defect MAOA gene and low levels of MAOA produced?

  • Brunner et al.
  • Plomin et al.
  • Miles and Carey
  • Caspi et al.

4. 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

5. Which study found that meta-analysis of 51 twin and adoption studies found that aggressive behaviour was a result of genetic influence?

  • Cocarro et al.
  • Hutchings and Mednick
  • Rhee and Waldman
  • Young et al.


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