AO1

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Created by
Tayyibah Hussain

Cards (5)

  • Twin studies are particularly important in determining the genetic/biological basis of a behaviour, due to the fact that MZ twins are genetically identical, whilst DZ twins share 50% of genes with each other
  • Twin studies
    • Mcguffun and Gottesman found a concordance rate of 87% for aggressive and antisocial behaviour of MZ pairs when compared to 72% for DZ pairs
  • Research findings for Adoption studies
    • Hutchings and Mednick reviewed over 14000 adoptions in Denmark and found significant positive correlation between the number of convictions for criminal violence among biological parents and the number of convictions for criminal violence among their adopted son's
  • The Warrior gene - MAOA is an enzyme which helps with the reuptake of neurotransmitters including serotonin.
  • humans with the MAOAL gene (L is for Low) have a lack of MAOA enzyme. Without this enzyme to recycle it the level of serotonin may become depleted.