DNA Marker Index information for Chromosome: M Marker: H2a2a1yNames and Aliases for this DNA Marker: H2a2a1y, H2a2a-a1.Chromosome Position in hg38 Human Genome assembly1: 2124.Chromosome Position in hg19 assembly2: 2124 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.