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Genet Couns. 2000;11(1):53-5.

Chromosomal abnormalities in mentally retarded children in the Konya region--Turkey.

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Department of Medical Genetics, Faculty of Medicine, Selcuk University, Konya, Turkiye.


Etiology of mental retardation is diverse. 120 Students from 11 special training, education, and rehabilitation subclasses were investigated cytogenetically for determining the contribution of chromosomal abnormalities to mild mental retardation. 23 of the 120 children (19%) had chromosomal abnormalities: thirteen cases a classical trisomy 21 (the male:female ratio was 9:4), three a balanced autosomal reciprocal translocation, one a pericentric inversion of chromosome 9, and six fragile-X syndrome (The male:female ratio was 5:1).

[Indexed for MEDLINE]

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