DNA Marker Index information for Chromosome: Y Marker: ZP21.3Names and Aliases for this DNA Marker: ZP21.3, rs1470373818.Chromosome Position in hg38 Human Genome assembly1: 20307799.Chromosome Position in hg19 assembly2: 22469685 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.