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, one from the mother and one from the father. Usually, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY).

2022年3月24日 · 48, XXYY is a genetic disorder that occurs in males and is characterized by additional sex chromosomes compared to the typical male karyotype of 46, XY. 48, XXYY syndrome has previously been described as a variant of Klinefelter syndrome because affected males have similar physical characteristics (tall stature and small, dysfunctional testes ...

XXYY Syndrome is the name attached to the cluster of symptoms that arise as a result of the 48,XXYY chromosome pattern. It affects one in every 17,000 boys.

48,XXYY syndrome is a chromosomal condition, characterized by the presence of an extra X and Y chromosome in males, that causes medical and behavioral problems. 48,XXYY can be considered a variant of Klinefelter syndrome.

48,XXYY syndrome is a chromosomal condition that causes infertility, developmental and behavioral disorders, and other health problems. Explore symptoms, inheritance, genetics of this condition.

We report on the results of a cross-sectional, multicenter study of 95 males age 1–55 with XXYY syndrome (mean age 14.9 years), describing diagnosis, physical features, medical problems, medications, and psychological features stratified by age groups. The mean age of …

XXYY syndrome is a rare genetic disorder. Usually, a male will have one X chromosome and one Y chromosome , but people with this disorder have two of each. They have 48 chromosomes instead of the usual 46.

48,XXYY, 48,XXXY and 49,XXXXY syndromes are rare sex chromosome aneuploidy conditions that are characterized by the presence of two or more extra X and Y chromosomes in males.

The 48,XXYY syndrome represents a chromosomal anomaly of the aneuploidic type characterized by the presence of an extra X and Y chromosome in males.

2023年11月14日 · 48, XXYY syndrome is a rare genetic condition, sometimes called double Y syndrome. Males are commonly affected. It is distinguished by an additional X and Y chromosome, giving rise to 48 instead of the typical 46 chromosomes.