DNA Marker Index information for Chromosome: M Marker: M1a1b1b2aNames and Aliases for this DNA Marker: M1a1b1b2a.Chromosome Position in hg38 Human Genome assembly1: 7780.Chromosome Position in hg19 assembly2: 7780 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.