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Williams–Beuren syndrome (WBS) is the chromosomal disorder arising from a hemizygous microdeletion at 7q11.23. The present study was focused on a comparative investigation of genomic integrity in WBS patients by use of cytogenetic methods and the alkaline comet assay. Lymphocytes of whole peripheral blood were cultured and metaphases were examined for frequency and spectrum of chromosome aberrations...
An unusual mosaic karyotype was detected in a 6-year-old female patient with clinical diagnosis of Turner syndrome (TS). Cytogenetic and molecular cytogenetic studies revealed besides a cell line with 45,X a second cell line where the short arm of the Y-chromosome was translocated onto the short arm of a chromosome 7; karyotype: 45,X,der(7)t(Y;7)(p11.1∼11.2;p22.3)/45,X. To delineate the mechanisms...
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