DNA Marker Index information for Chromosome: M Marker: G3421ANames and Aliases for this DNA Marker: G3421A, G3421, i4000520.Chromosome Position in hg38 Human Genome assembly1: 3421.Chromosome Position in hg19 assembly2: 3421 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.