DNA Marker Index information for Chromosome: Y Marker: S21408.1Names and Aliases for this DNA Marker: S21408.1, S21408, rs997315038.Chromosome Position in hg38 Human Genome assembly1: 16761100.Chromosome Position in hg19 assembly2: 18872980 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.