DNA Marker Index information for Chromosome: Y Marker: A20343.1Names and Aliases for this DNA Marker: A20343.1, A20343.Chromosome Position in hg38 Human Genome assembly1: 7917671.Chromosome Position in hg19 assembly2: 7785712 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.