XYY theory (Jacob et Al) Flashcards

(9 cards)

1
Q

What is a ‘Super male’?

A

A ‘Super male’ refers to an individual with an extra ‘Y’ chromosome.

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2
Q

What behavior is associated with men who have XYY?

A

Men with XYY have been found to exhibit aggressive behavior.

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3
Q

What is the estimated prevalence of XYY in the general male population?

A

Studies estimate that there are 1 in 1000 men with XYY in society.

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4
Q

What is the estimated prevalence of XYY among prisoners?

A

Studies suggest that there are 15 in 1000 prisoners with XYY.

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5
Q

What did Thiellgard do?

A

Refused and proved that the theory of having XYY linked with aggression

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6
Q

What was the limitations about this theory?

A

That it ignored environmental factors
Not all genetical abnormalities intended crime.

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7
Q

What was the policy used within this

A

Death Penalty

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8
Q

How was the policy used?

A

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.

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9
Q

What are the strengths of this theory?

A

15 in 1000 prisoners had XYY made this theory look good.

Studies by Adler et al showed a link between aggression and genetics

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