DNA Marker Index information for Chromosome: M Marker: C12621TNames and Aliases for this DNA Marker: C12621T, C12621, i4001032.Chromosome Position in hg38 Human Genome assembly1: 12621.Chromosome Position in hg19 assembly2: 12621 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.