Turner syndrome overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Turner syndrome or Ullrich-Turner syndrome encompasses several chromosomal abnormalities, of which monosomy X is the most common. It occurs in 1 out of every 2500 female births.[1] Instead of the normal XX sex chromosomes for a female, only one X chromosome is present and fully functional. A normal female karyotype is labeled 46,XX; individuals with Turner syndrome are 45,X. In Turner syndrome, female sexual characteristics are present but generally underdeveloped.
References
- ↑ National Institutes of Health (2004). "Clinical Features of Turner syndrome". Retrieved 2006-07-17.