XYY syndrome

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Related to XYY syndrome: XXY syndrome, Turner syndrome

XYY syndrome

the theory that a man with an extra Y-chromosome is predisposed towards violence and aggression and hence the basis, usually unsuccessful, for a defence argument.

Collins Dictionary of Law © W.J. Stewart, 2006

References in periodicals archive ?

A total of 51 infertile males with nonmosaic 47, XYY syndrome who underwent FISH-PGD treatment from January 2012 to May 2017 were included in the study.

Outcomes of Preimplantation Genetic Diagnosis Cycles by Fluorescent In situ Hybridization of Infertile Males with Nonmosaic 47,XYY Syndrome

He suffered from XYY syndrome, a condition in which the human male has an extra Y chromosome.

Breakthrough in Molseed inquiry

Harris noted that in one court case involving a defendant with XYY syndrome, the court ruled that chromosomal abnormalities have not yet been established as a cause for behavior, echoing the findings of other courts.