DNA Marker Index information for Chromosome: Y Marker: Z253.1Names and Aliases for this DNA Marker: Z253.1, Z253, S218.1, S218, rs768946531.Chromosome Position in hg38 Human Genome assembly1: 7324993.Chromosome Position in hg19 assembly2: 7193034 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.