XYY theory (Jacob et Al) Flashcards
What is a ‘Super male’?
A ‘Super male’ refers to an individual with an extra ‘Y’ chromosome.
What behavior is associated with men who have XYY?
Men with XYY have been found to exhibit aggressive behavior.
What is the estimated prevalence of XYY in the general male population?
Studies estimate that there are 1 in 1000 men with XYY in society.
What is the estimated prevalence of XYY among prisoners?
Studies suggest that there are 15 in 1000 prisoners with XYY.
What did studies by Adler et al emphasise?
Studies by Adler et al further emphasised the link between aggression and genetics.
What did Thiellgard do?
Refused and proved that the theory of having XYY linked with aggression
What was the limitations about this theory?
That it ignored environmental factors
What was the policy used within this
Death Penalty
How was the policy used?
It was a policy that was put into place and used to get rid of people who would genetically intend to kill, and was abolished in 1969.
