DNA Marker Index information for Chromosome: Y Marker: Y109640.1Names and Aliases for this DNA Marker: Y109640.1, Y109640.Chromosome Position in hg38 Human Genome assembly1: 20586620.Chromosome Position in hg19 assembly2: 22748506 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.