DNA Marker Index information for Chromosome: Y Marker: S1249Names and Aliases for this DNA Marker: S1249, B344, rs761160427.Chromosome Position in hg38 Human Genome assembly1: 6985522.Chromosome Position in hg19 assembly2: 6853563 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.