DNA Marker Index information for Chromosome: Y Marker: BY20561.1Names and Aliases for this DNA Marker: BY20561.1, BY20561.Chromosome Position in hg38 Human Genome assembly1: 20301514.Chromosome Position in hg19 assembly2: 22463400 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.