[Translocation of chromosome 1/29 and its various phenotypic manifestations in Ala-Tau breed cattle]

117 heads of Ala-Tau breed cattle were studied cytogenetically. The 1/29 translocation was present in 13 animals of unusual for this breed light-grey colour. Chimerism 2n = 59/2n = 60 was found in twins. Dominant mutation transforming dark brown colour to the light-grey seemed to be present in the 1/29 chromosome locus, near the centromere region.