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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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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 .
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 ...
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 ...
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 ...
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 ...
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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 ...