DNA Marker Index information for Chromosome: Y Marker: YP268Names and Aliases for this DNA Marker: YP268, M12218, FGC10645, rs557012855.Chromosome Position in hg38 Human Genome assembly1: 20972023.Chromosome Position in hg19 assembly2: 23133909 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.