DNA Marker Index information for Chromosome: M Marker: T3866CNames and Aliases for this DNA Marker: T3866C, T3866, i3002120, rs200479541.Chromosome Position in hg38 Human Genome assembly1: 3866.Chromosome Position in hg19 assembly2: 3866 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.