title: Chiasma derived genetic lengths and recombination fractions: a 46, XY, t(9; 10) (p22; q24) reciprocal translocation.
abstract: Chiasma distribution data on chromosomes 1, 2 and 9 from a reciprocal translocation carrier with a 46, XY, t(9; 10) (p22; q24) karyotype were used to calculate genetic distances and recombination fractions for chromosome segments corresponding to the major mitotic bands and for intervals between the centromeres and points at 10% intervals along the chromosome arms. These values were compared with those from control males with normal karyotypes. The translocation showed a marked increase in crossing-over in one specific region of chromosome 9 and, in addition, there was evidence of interchromosomal effects in chromosomes 1 and 2.
mesh_terms: D002503:Centromere; D002871:Chromosome Banding; D002874:Chromosome Mapping; D002900:Chromosomes, Human, 1-3; D002906:Chromosomes, Human, 6-12 and X; D003434:Crossing Over, Genetic; D006579:Heterozygote; D006801:Humans; D008297:Male; D014178:Translocation, Genetic