DNA Marker Index information for Chromosome: M Marker: A12331GNames and Aliases for this DNA Marker: A12331G, A12331, i3001101.Chromosome Position in hg38 Human Genome assembly1: 12331.Chromosome Position in hg19 assembly2: 12331 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.