Turner syndrome: Difference between revisions
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Turner Syndrome is a [[Monosomic|monosomic]] condition in which only one X chromosome is present (XO). Instead of having a set of 44 autosomes + 1 pair of sex chromosomes (either XX or XY), the person has only 44 autosomes + 1 X chromosomes. It happens in about 1 in 5000 female births. The affected females are of a characteristic [[Phenotype|phenotype]] e.g sterile, have a short height, low hairline, small finger nails, poor breasts development with the nipples spread a distance apart. < | Turner Syndrome is a [[Monosomic|monosomic]] condition in which only one X chromosome is present (XO). Instead of having a set of 44 autosomes + 1 pair of sex chromosomes (either XX or XY), the person has only 44 autosomes + 1 X chromosomes. It happens in about 1 in 5000 female births. The affected females are of a characteristic [[Phenotype|phenotype]] e.g sterile, have a short height, low hairline, small finger nails, poor breasts development with the nipples spread a distance apart <ref>Anthony JF Griffiths et al., 1990, Modern Genetic Analysis, New York : W.H.Freeman, Chapter 8</ref>. | ||
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Revision as of 14:49, 13 November 2010
Turner Syndrome is a monosomic condition in which only one X chromosome is present (XO). Instead of having a set of 44 autosomes + 1 pair of sex chromosomes (either XX or XY), the person has only 44 autosomes + 1 X chromosomes. It happens in about 1 in 5000 female births. The affected females are of a characteristic phenotype e.g sterile, have a short height, low hairline, small finger nails, poor breasts development with the nipples spread a distance apart [1].
References
- ↑ Anthony JF Griffiths et al., 1990, Modern Genetic Analysis, New York : W.H.Freeman, Chapter 8