Criminological: Biological Explanations Of Crime (XYY Syndrome) Flashcards

1
Q

How common is XYY syndrome?

A

1 in 10,000 males born with additional Y chromosome.

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2
Q

What effects does XYY syndrome cause?

A

No effect on testosterone.
+Taller than average
+Low intelligence
+Impulsive

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3
Q

What is the supporting evidence of XYY syndrome?

A

Jacobs et al
Conducted a chromosome study of male patients. XYY pattern more commonly found in prisons (15 in 10,000).

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4
Q

What is the opposing evidence of the XYY syndrome explanation of crime?

A

A meta analysis conducted on 50 years of research revealed no link between XYY syndrome and offending.
Reductionist: environmental factors may affect. Eg: low intelligence= may turn to crime.

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5
Q

How can biological explanations be applied?

A

New ways to asses culpability in crime.
Increased awareness of brain injury in the criminal justice system and that it should be viewed similarly to mental health disorders.

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6
Q

How does XYY lead to criminal behaviour?

A

Behavioural problems may lead to impulsivity and criminal behaviour.

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7
Q

What is the gender difference of XYY syndrome?

A

It’s impossible for women to gain an extra Y syndrome as they only have XX

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