Fluorescence in situ hybridization of the TCL1 genomic locus to lymphocyte metaphases from the AT patient with the T-cell clonal expansion showed that the breakpoint of the t ( 14 ; 14 ) translocation lies within the TCL1 locus and is accompanied by an inverted duplication of the distal part of chromosome 14 .
fluorescence in situ hybridization of the tcl1 genomic locus to lymphocyte metaphases from the at patient with the t-cell clonal expansion showed that the breakpoint of the t ( 14 ; 14 ) translocation lies within the tcl1 locus and is accompanied by an inverted duplication of the distal part of chromosome 14 .
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