DNA Marker Index information for Chromosome: Y Marker: BTL60000015456Names and Aliases for this DNA Marker: BTL60000015456, Y263625, rs781228502.Chromosome Position in hg38 Human Genome assembly1: 17129643.Chromosome Position in hg19 assembly2: 19241523 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.