DNA Marker Index information for Chromosome: M Marker: U5b1b1a4Names and Aliases for this DNA Marker: U5b1b1a4.Chromosome Position in hg38 Human Genome assembly1: 3327.Chromosome Position in hg19 assembly2: 3327 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.