DNA Marker Index information for Chromosome: M Marker: T4977CNames and Aliases for this DNA Marker: T4977C, T4977, MitoT4978C, rs28357981.Chromosome Position in hg38 Human Genome assembly1: 4977.Chromosome Position in hg19 assembly2: 4977 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.