Difference between revisions of "Trisomy X"
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== References ==
== References ==
Revision as of 14:45, 15 December 2010
Trisomy X is a caused by the presence of an extra X chromosome in females (47,XXX instead of 46,XX). This is also the most common female chromosomal abnormality, occurring in approximately 1 in 1,000 female births.
Other abnormalities of chromosome number include: female tetrasomy X (quadruple X, or 48, XXXX) a rare chromosomal disorder and male Klinefelter syndrome, the presence of an additional X chromosome (47, XXY or XXY).
Some Recent Findings
|Feature||Estimated frequency based on current available data|
|Tall stature >75th percentile||80-89%|
|Hypotonia in infancy||55-71%|
|Congenital hip dysplasia||2-12%|
|Premature ovarian failure||unknown|
Table data from Tartaglia NR, etal., 2010
Search Pubmed: Trisomy X
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Cite this page: Hill, M.A. (2020, February 21) Embryology Trisomy X. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Trisomy_X
- © Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G