DNA Marker Index information for Chromosome: M Marker: C9923TNames and Aliases for this DNA Marker: C9923T, C9923, rs879245005.Chromosome Position in hg38 Human Genome assembly1: 9923.Chromosome Position in hg19 assembly2: 9923 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.