genetic explanation

Question 1

assumptions of genetic explanation of criminality

Answer 1

suggests some people inherit a gene that makes them pre disposed to crime
-candidate gene
-twin and adoption studies

Question 2

outline christiansens twin study

Answer 2

-studied over 3500 twin pairs in denmark
identical twin offending concordance rates- 35%
DZ twin-13%
offender behaviour checked against police records

Question 3

who conducted the genetic analysis of offenders?

Answer 3

Tiihonen conducted a genetic analysis of almost 800 finnish offenders

Question 4

what genes did the genetic analysis find was implicated in violent crime?

Answer 4

MAOA and CDH13

Question 5

how is the MAOA gene implicated in criminality ?

Answer 5

the low activity of the MAOA gene that regulates serotonin has been linked to aggression and violence

Question 6

how is the CDH13 gene implicated in criminality ?

Answer 6

linked to substance abuse and ADHD

Question 7

what percentage if violent crime in finland was found to be linked to the MAOA and CDH13?

Answer 7

5-10%

Question 8

what is the distress stress model for criminality?

Answer 8

a tendency towards offending behaviour may come about through a combination of genetic predisposition and a psychological trigger such as a dysfunctional environment or criminal role models