DNA Marker Index information for Chromosome: Y Marker: PH1818.1Names and Aliases for this DNA Marker: PH1818.1, PH1818, rs773639777.Chromosome Position in hg38 Human Genome assembly1: 13672131.Chromosome Position in hg19 assembly2: 15784011 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.