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48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell.Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteristics.
By that time, three men with XXYY syndrome had been reported. [16] 49,XXXYY was one of the later sex chromosome aneuploidies to be discovered, being preceded by Turner, [17] Klinefelter, [18] and trisomy X [19] in 1959, XXYY syndrome in 1960, [20] and XYY [21] and tetrasomy X [22] in 1961.
The clinical manifestations are highly variable, ranging from partial virilisation and ambiguous genitalia at birth, to patients with completely male or female gonads. Most individuals with this karyotype have apparently normal male genitalia , and a minority have female genitalia , with a significant number of individuals showing genital ...
None of the top 10 1970s baby girl names overlapped with the top 10 list of names 50 years prior. In fact, there are only two baby girl names that made the top 25 baby girl names in both the 1920s ...
XYY syndrome, also known as Jacobs syndrome, is an aneuploid genetic condition in which a male has an extra Y chromosome. [1] There are usually few symptoms. [2] These may include being taller than average and an increased risk of learning disabilities.
Amidst the bell bottoms, funky prints, and free-spirited natures of the 1970s, a crop of baby names saw their height of fame. Today, these girl and boy names are seen as “classic ...
XYYY syndrome, also known as 48,XYYY, is a chromosomal disorder in which a male has two extra copies of the Y chromosome. The syndrome is exceptionally rare, with only twelve recorded cases. The presentation of the syndrome is heterogeneous, but appears to be more severe than its counterpart XYY syndrome.
XYYYY syndrome, also known as 49,XYYYY, is an exceptionally rare chromosomal disorder in which a male human has three additional copies of the Y chromosome. Only seven non- mosaic cases of the disorder have ever been recorded in the medical literature, as well as five mosaic cases, of which two had more 48,XYYY than 49,XYYYY cells. [ 1 ]