DNA Marker Index information for Chromosome: Y Marker: Z256.1Names and Aliases for this DNA Marker: Z256.1, Z256, rs768812808.Chromosome Position in hg38 Human Genome assembly1: 26467330.Chromosome Position in hg19 assembly2: 28613477 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.