DNA Marker Index information for Chromosome: M Marker: A4123GNames and Aliases for this DNA Marker: A4123G, A4123, rs200764459.Chromosome Position in hg38 Human Genome assembly1: 4123.Chromosome Position in hg19 assembly2: 4123 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.