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