Brunner et al

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  • Created on: 31-05-12 10:53

Turning To Crime – What Are The Causes of Criminal Behaviour?

Biology

 

3.2 Genes & Serotonin

 

–    Price (1966) – suggested that males with an extra Y chromosome (XYY) were predisposed to violent crime.

–    They are above average height and below average intelligence.

–    Christiansen (1977) – looked at 3586 twin pairs in Denmark. A 52% concordance rate was found for monozygotic twins compared to just 22% for dizygotic twins.

–    We must remember the effects of shared upbringing and if crime really were genetic then there would be an

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