DNA Marker Index information for Chromosome: Y Marker: BY42748Names and Aliases for this DNA Marker: BY42748, A21313, rs894518185.Chromosome Position in hg38 Human Genome assembly1: 8248507.Chromosome Position in hg19 assembly2: 8116548 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.