Chromosomal mapping by fluorescence in situ hybridization (FISH) of Valpha and Cdelta clones localized the TCRA/TCRD locus on sheep chromosome region 7q14-->q22.     ///    Assignment of the TCRA/TCRD locus to sheep chromosome bands 7q1.4-->q2.2 by fluorescence in situ hybridization..     ///     Two genomic clones for the TCRA/TCRD locus have been isolated and characterized in sheep. 