DNA Marker Index information for Chromosome: Y Marker: BY2720Names and Aliases for this DNA Marker: BY2720, A2202, Y13557.Chromosome Position in hg38 Human Genome assembly1: 6934439.Chromosome Position in hg19 assembly2: 6802480 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.