DNA Marker Index information for Chromosome: M Marker: C1721TNames and Aliases for this DNA Marker: C1721T, C1721, i3001995, rs200626438.Chromosome Position in hg38 Human Genome assembly1: 1721.Chromosome Position in hg19 assembly2: 1721 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.