DNA Marker Index information for Chromosome: Y Marker: S3337Names and Aliases for this DNA Marker: S3337, S3939, rs781269425.Chromosome Position in hg38 Human Genome assembly1: 19734048.Chromosome Position in hg19 assembly2: 21895934 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.