DNA Marker Index information for Chromosome: M Marker: C12831TNames and Aliases for this DNA Marker: C12831T, C12831, i4001274.Chromosome Position in hg38 Human Genome assembly1: 12831.Chromosome Position in hg19 assembly2: 12831 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.