DNA Marker Index information for Chromosome: M Marker: U4b1b1b2Names and Aliases for this DNA Marker: U4b1b1b2.Chromosome Position in hg38 Human Genome assembly1: 7317.Chromosome Position in hg19 assembly2: 7317 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.