DNA Marker Index information for Chromosome: Y Marker: BY31280.2Names and Aliases for this DNA Marker: BY31280.2, Y131094.2.Chromosome Position in hg38 Human Genome assembly1: 20971140.Chromosome Position in hg19 assembly2: 23133026 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.