DNA Marker Index information for Chromosome: M Marker: C7493TNames and Aliases for this DNA Marker: C7493T, C7493, i4000890, rs397515728.Chromosome Position in hg38 Human Genome assembly1: 7493.Chromosome Position in hg19 assembly2: 7493 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.