DNA Marker Index information for Chromosome: M Marker: B4a1a1a19Names and Aliases for this DNA Marker: B4a1a1a19.Chromosome Position in hg38 Human Genome assembly1: 16302.Chromosome Position in hg19 assembly2: 16302 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.