Genetic Factors of Aggression

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1. Theilgaard's initial research found?

  • Inmates with an extra Y chromosome had increased aggressive thought patterns and decreased non-aggresive thought patterns
  • Male members in a family that showed violent all had a defect MAOA gene and low levels of MAOA produced
  • 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
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Other questions in this quiz

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

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

3. What did Plomin et al find?

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

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

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

5. Which study found that children with variant of the MAOA gene, produced less of MAOA but only showed aggressive behaviour if maltreated during childhood?

  • Theilgaard
  • Brunner et al.
  • Plomin et al.
  • Caspi et al.
  • Young et al.
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