DNA Marker Index information for Chromosome: Y Marker: ZZ23Names and Aliases for this DNA Marker: ZZ23, ZZ23_1, ZZ23_2.Chromosome Position in hg38 Human Genome assembly1: 17841146.Chromosome Position in hg19 assembly2: 19953026 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: A.