DNA Marker Index information for Chromosome: M Marker: C7978TNames and Aliases for this DNA Marker: C7978T, C7978, i3000675, rs878951731.Chromosome Position in hg38 Human Genome assembly1: 7978.Chromosome Position in hg19 assembly2: 7978 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.