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Noun1.XYY - (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes
sex chromosome - (genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes"
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
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References in periodicals archive ?
We did a comprehensive study on the clinical outcomes of patients with nonmosaic 47, XYY syndrome who underwent FISH-PGD treatment.
A male can also have an extra Y chromosome, known as XYY syndrome.
Thus, SHOX haploinsufficiency is associated with short stature (as seen with Turner syndrome), and additional SHOX genes (as seen with sex-chromosome polyploidies such as Klinefelter syndrome, triple X syndrome, and XYY syndrome) are associated with tall stature [5].
Third, the assays are solely qualitative and cannot distinguish between any sex chromosome disorders, such as Klinefelter's syndrome, Turner syndrome, Triple X, and XYY. We posit that qPCR could overcome this issue in a similar fashion as seen with detection of Trisomy 18 and Trisomy 21.
Also, in the late 1960s and 1970s, researchers believed that high aggressiveness in males was caused by an additional Y chromosome, which became known as the "XYY male syndrome" and that led to the profiling of men who possessed this biological trait as criminals.
citations, eg, unknowns, and the x,y,z Cartesian coordinate system), then XYY (24.7, Chambers, XYY syndrome, a sex chromosome number abnormality).
European data from consecutive birth studies show that the incidence of Klinefelter syndrome (XXY) appears to be increasing, but no increases have been observed in the incidence of XXX or XYY trisomies (Morris et al.
XYY, XXY, or XXYY (all considered male); or XO (one X chromosome only)
Tough guy actor Don played George Bulman in TV series The XYY Man in the mid-70s.
It is characterised by its focal distribution, slower transformation, the presence of an embryo or fetus, and a triploid karyotype (70% are 69, XXY; 27% are 69, XXX; 3% are 69 XYY).
"He was born with an XYY syndrome - a genetic condition in which males have an extra chromosome.