DNA Marker Index information for Chromosome: Y Marker: BY2740Names and Aliases for this DNA Marker: BY2740, Y12931, rs1343992981.Chromosome Position in hg38 Human Genome assembly1: 14806412.Chromosome Position in hg19 assembly2: 16918292 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.