DNA Marker Index information for Chromosome: M Marker: C4a2a1b1aNames and Aliases for this DNA Marker: C4a2a1b1a.Chromosome Position in hg38 Human Genome assembly1: 16000.Chromosome Position in hg19 assembly2: 16000 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.