DNA Marker Index information for Chromosome: M Marker: C1d1bNames and Aliases for this DNA Marker: C1d1b, C1d1b-a.Chromosome Position in hg38 Human Genome assembly1: 928.Chromosome Position in hg19 assembly2: 928 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.