DNA Marker Index information for Chromosome: M Marker: A189GNames and Aliases for this DNA Marker: A189G, A189, i3002034, rs371543232.Chromosome Position in hg38 Human Genome assembly1: 189.Chromosome Position in hg19 assembly2: 189 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.