DNA Marker Index information for Chromosome: Y Marker: L137.3Names and Aliases for this DNA Marker: L137.3, S166.3, rs34441307.Chromosome Position in hg38 Human Genome assembly1: 9953641.Chromosome Position in hg19 assembly2: 9791250 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.