DNA Marker Index information for Chromosome: M Marker: J2a1a1d2Names and Aliases for this DNA Marker: J2a1a1d2.Chromosome Position in hg38 Human Genome assembly1: 6659.Chromosome Position in hg19 assembly2: 6659 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.