DNA Marker Index information for Chromosome: M Marker: A6989GNames and Aliases for this DNA Marker: A6989G, A6989, rs1978001.Chromosome Position in hg38 Human Genome assembly1: 6989.Chromosome Position in hg19 assembly2: 6989 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.