XXYY syndrome is a sex chromosome anomaly in which males have two extra chromosomes, one X and one Y chromosome. Human cells usually contain two sex chromosomes...

others. Those with XXXY syndrome tend to display less externalizing and internalizing behaviors compared to those with 48,XXYY syndrome, which may have a positive...

problems are typical. One study looked at males that were diagnosed with 48,XXYY, 48,XXXY and 49,XXXXY. They found that males with 48,XXXY and 49,XXXXY function...

chromosome anomalies Klinefelter syndrome XXYY syndrome XYYY syndrome XYYYY syndrome Turner syndrome Trisomy X "47,XYY syndrome". Genetics Home Reference. January...

gametes. XXXYY syndrome, by its nature, requires multiple steps of nondisjunction. Possible causes include fertilization of a normal egg by an XXYY sperm, fertilization...

Down syndrome (United States) or Down's syndrome (United Kingdom and other English-speaking nations), also known as trisomy 21, is a genetic disorder...

Intersex Taurodontism Trisomy X Turner syndrome XYY syndrome XXYY syndrome "What are common symptoms of Klinefelter syndrome (KS)?". Eunice Kennedy Shriver National...

discovered, being preceded by Turner, Klinefelter, and trisomy X in 1959, XXYY syndrome in 1960, and XYY and tetrasomy X in 1961. By the time of Linden, Bender...

Turner syndrome (TS), also known as 45,X, or 45,X0, is a genetic disorder in which a person's cells have only one X chromosome or are partially missing...

XXXY syndrome XXYY syndrome XY gonadal dysgenesis XYY syndrome Yellow nail syndrome Yemenite deaf-blind hypopigmentation syndrome Yentl syndrome Yim–Ebbin...