DNA Marker Index information for Chromosome: Y Marker: M177Names and Aliases for this DNA Marker: M177, SRY9138, rs369688174, rs796315676.Chromosome Position in hg38 Human Genome assembly1: 2790828.Chromosome Position in hg19 assembly2: 2658869 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.