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1. www.bmj.com › content › 310/6975/272Biological influences on criminal behaviour: how good is the ...

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   Feb 4, 1995 · In the 1960s it was proposed that males with an extra Y chromosome were predisposed to violent criminal behaviour; later work found no support for this hypothesis.1 Recently, two approaches, one genetic, the other biochemical, have received widespread publicity. I would argue that currently neither approach provides convincing evidence that criminal behaviour can be understood in terms of ...

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     XYY Syndrome | WJEC Criminology | Unit 2 | A.C. 2.1 | Revision

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3. www.ncbi.nlm.nih.gov › pmc › articlesForensic Value of Genetic Variants Associated with Anti ...

   www.ncbi.nlm.nih.gov › pmc › articles

   Dec 17, 2021 · The role play by the Y chromosome and androgens in criminal behavior is unclear. The presence of DYS533 allele 14 and DYS437 allele 14 (two short tandem repeats loci of Y chromosome) increases the risk of aggressive behavior. Conversely, the DYS437 allele 15 frequency was higher in persons without a history of criminal behavior .

4. www.jax.org › the-genetics-of-violent-behaviorThe genetics of violent behavior - The Jackson Laboratory

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   Based on a large number of twin and sibling studies that span almost four decades, the genetic contribution to delinquency is thought to be approximately 50%. The current model is that environmental influences account for the other 50% of cases of violent behavior and delinquency. Lately, biosocial research has made big strides deciphering the ...

5. blog.rsb.org.uk › criminal-genes-guilty-as-chargedCriminal genes: guilty as charged? | Royal Society of Biology ...

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   Oct 14, 2013 · The study of behaviour also covers antisocial or criminal activity. Several genetics factors have been identified to show an increased likelihood of criminal behaviour. Back in 1965, a study by Jacobs et al revealed that there is an increased percentage of men with an extra Y chromosome (XYY) in prison than in the general population. In fact ...

6. www.ojp.gov › ncjrs › virtual-libraryHUMAN AGGRESSION AND THE EXTRA Y CHROMOSOME - FACT OR FANTASY?

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   American Psychologist Volume: 28 Issue: 8 Dated: (AUGUST 1973) Pages: 674-682. Author (s) L F JAVIK; V KLODIN; S S MATSUYAMA. Date Published. 1973. Length. 9 pages. Annotation. AN OVERVIEW IS PROVIDED OF ARGUMENTS LINKING AGGRESSION AND AN EXTRA Y CHROMOSOME; THAT IS, THAT A CHROMOSOMAL ABERRATION IN SOME MENTALLY RETARDED MALE CRIMINALS IS ...

7. www.theverge.com › 2014/6/4 › 5779198If violence is in your genes, should courts be more lenient?

   www.theverge.com › 2014/6/4 › 5779198

   Jun 4, 2014 · "The number one risk factor for violent crime is the Y chromosome," Morse says. If we allowed "maleness" to be used as an excusing condition, he says, "most violent criminals would be getting off ...

8. People also ask

   Is a Y chromosome predisposed to violent criminal behaviour?

   • In the 1960s it was proposed that males with an extra Y chromosome were predisposed to violent criminal behaviour; later work found no support for this hypothesis. 1 Recently, two approaches, one genetic, the other biochemical, have received widespread publicity.

   Biological influences on criminal behaviour: how good is the evidence

   www.bmj.com/content/310/6975/272

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   What if criminal behaviour is driven by unconscious genetic predispositions?

   • If a defendant’s criminal behaviour, rather than being determined by conscious choices, were driven by unconscious genetic predispositions to commit antisocial acts, the person may seem less responsible for the outcome and therefore less deserving of punishment 2.

   Behavioural genetics in criminal court | Nature Human Behaviour

   www.nature.com/articles/s41562-017-0212-4

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   Can criminal behaviour be understood in genetics or biochemistry?

   • I would argue that currently neither approach provides convincing evidence that criminal behaviour can be understood in terms of genetics or biochemistry.

   Biological influences on criminal behaviour: how good is the evidence

   www.bmj.com/content/310/6975/272

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   Can genetics cause violent behavior?

   • But until recently, no genes had been shown to contribute to severe or recidivistic violent behaviors such as homicide. According to a meta-analysis on data from 24 genetically informative studies, up to 50% of the total variance in aggressive behavior is explained by genetic influences.

   The genetics of violent behavior - The Jackson Laboratory

   www.jax.org/news-and-insights/jax-blog/2015/december/the-genetics-of-violent-behavior

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   What genes are involved in violent behavior?

   • Aggressive behavior in humans has also been linked with other genes, including variants of the androgen receptor gene (AR) and the catechol-O-methyltransferase (COMPT) gene –also responsible of breaking down dopamine. What are genes from extremely violent criminals telling us?

   The genetics of violent behavior - The Jackson Laboratory

   www.jax.org/news-and-insights/jax-blog/2015/december/the-genetics-of-violent-behavior

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   Is there a link between genes and criminal behavior?

   • Although scientists have made links between certain genes and antisocial behavior, Tielbeek says, there is "no clear predictive relationship between a single gene and a criminal act — especially since hundreds of genes are involved in criminal behavior, and that each have a very small effect."

   If violence is in your genes, should courts be more

   www.theverge.com/2014/6/4/5779198/if-violence-is-in-your-genes-should-courts-be-more-lenient

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9. www.nature.com › articles › s41562/017/0212-4Behavioural genetics in criminal court | Nature Human Behaviour

   www.nature.com › articles › s41562/017/0212-4

   Sep 18, 2017 · Introduction of genetic evidence of a predisposition to violent or impulsive behaviour is on the rise in criminal trials. However, a panoply of data suggests that such evidence is ineffective at ...