DNA Marker Index information for Chromosome: M Marker: G66dNames and Aliases for this DNA Marker: G66d, 66d, G71d, 71d.Chromosome Position in hg38 Human Genome assembly1: 71.Chromosome Position in hg19 assembly2: 71 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: del.