DNA Marker Index information for Chromosome: M Marker: B4b1a2g1Names and Aliases for this DNA Marker: B4b1a2g1.Chromosome Position in hg38 Human Genome assembly1: 7843.Chromosome Position in hg19 assembly2: 7843 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.