DNA Marker Index information for Chromosome: Y Marker: Y20746Names and Aliases for this DNA Marker: Y20746, SUR86, rs866163023.Chromosome Position in hg38 Human Genome assembly1: 16741598.Chromosome Position in hg19 assembly2: 18853478 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.