DNA Marker Index information for Chromosome: Y Marker: Z251Names and Aliases for this DNA Marker: Z251.1, Z251, S470, rs746402982, Z251.2.Chromosome Position in hg38 Human Genome assembly1: 8868293.Chromosome Position in hg19 assembly2: 8736334 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.