Ring chromosome 22 in a mentally retarde
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J. P. Fryns; H. Berghe
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Article
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1979
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Springer
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English
⚖ 207 KB
A ring chromosome 22 is described in a 6-year-old mentally retarded boy, who presented a dysmorphic syndrome. The ring chromosome 22 was inherited from the mother, in whom a 46,XX/46,XX,r(22)/45,XY,-15,-22,+t(15;22)(p11;q11) mosaic karyotype was found, indicating a high degree of instability of the