DNA Marker Index information for Chromosome: Y Marker: Z20774.1Names and Aliases for this DNA Marker: Z20774.1, Z20774, rs866804082.Chromosome Position in hg38 Human Genome assembly1: 16451489.Chromosome Position in hg19 assembly2: 18563369 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.