DNA Marker Index information for Chromosome: M Marker: A1900GNames and Aliases for this DNA Marker: A1900G, A1900, i3002007.Chromosome Position in hg38 Human Genome assembly1: 1900.Chromosome Position in hg19 assembly2: 1900 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.