DNA Marker Index information for Chromosome: Y Marker: Z20647Names and Aliases for this DNA Marker: Z20647, SK569, rs1020823061.Chromosome Position in hg38 Human Genome assembly1: 6874037.Chromosome Position in hg19 assembly2: 6742078 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: G.