Search results
Results from the WOW.Com Content Network
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.
Red ear syndrome; Red man syndrome (Drug eruption) Refeeding syndrome; Reactive arthritis; Renal dysplasia-limb defects syndrome; Renfield syndrome; Renpenning's syndrome; Restless legs syndrome; Restrictive dermopathy; Retinoic acid syndrome; Retirement syndrome; Rett syndrome; Reversible cerebral vasoconstriction syndrome; Revesz syndrome ...
[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 49,XXXYY karyotype was not reported again until 1974, highlighting the rarity of the syndrome. [23]
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. ... XXYY syndrome : X, Y 1:18,000-40,000 males
XXYY syndrome; XYY syndrome; XYYY syndrome; XYYYY syndrome; Y. Y chromosome microdeletion This page was last edited on 3 January 2014, at 08:17 (UTC). Text is ...
This syndrome, evenly distributed in all ethnic groups, has a prevalence of approximately four subjects per every 10,000 (0.04%) males in the general population. [ 35 ] [ 64 ] [ 65 ] [ 66 ] However, it is estimated that only 25% of the individuals with Klinefelter syndrome are diagnosed throughout their lives. [ 50 ]
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 .
It is not uncommon for patients to be diagnosed later in life due to short stature or delayed puberty, or a combination of both. [ 8 ] 45,X/46,XY mosaicism can be detected prenatally through amniocentesis however, it was determined that the proportion of 45,X cells in the amniotic fluid cannot predict any phenotypic outcomes, often making ...