DNA Marker Index information for Chromosome: Y Marker: BY1771Names and Aliases for this DNA Marker: BY1771, Y7569, PH4846, rs760782493.Chromosome Position in hg38 Human Genome assembly1: 19466796.Chromosome Position in hg19 assembly2: 21628682 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.