DNA Marker Index information for Chromosome: M Marker: U5b1b1a3Names and Aliases for this DNA Marker: U5b1b1a3.Chromosome Position in hg38 Human Genome assembly1: 1850.Chromosome Position in hg19 assembly2: 1850 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.