DNA Marker Index information for Chromosome: M Marker: B4c1a1a3Names and Aliases for this DNA Marker: B4c1a1a3.Chromosome Position in hg38 Human Genome assembly1: 12505.Chromosome Position in hg19 assembly2: 12505 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.