DNA Marker Index information for Chromosome: M Marker: C13981TNames and Aliases for this DNA Marker: C13981T, C13981, rs201144988.Chromosome Position in hg38 Human Genome assembly1: 13981.Chromosome Position in hg19 assembly2: 13981 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.