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fragile X chromosome

 

Definition: an X chromosome with a fragile site near the end of the long arm, resulting in the appearance of an almost detached fragment; demonstrated only under special culture conditions; frequently associated with X-linked mental retardation.

See: Renpenning syndrome

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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