DNA Marker Index information for Chromosome: Y Marker: S4985Names and Aliases for this DNA Marker: S4985, A30957, rs781450268.Chromosome Position in hg38 Human Genome assembly1: 21086965.Chromosome Position in hg19 assembly2: 23248851 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.