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Turner syndrome

Turner syndrome is a human genetic abnormality, caused by a nondisjunction in the sex chromosomes that occurs in females (1 out of every 2,500 births).

Instead of the normal XX sex chromosomes, only one X chromosome is present and fully functional; this is called 45,X or X0.

Note:   The above text is excerpted from the Wikipedia article "Turner syndrome", which has been released under the GNU Free Documentation License.
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May 27, 2017

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