DNA Marker Index information for Chromosome: M Marker: U7a3b3a1Names and Aliases for this DNA Marker: U7a3b3a1.Chromosome Position in hg38 Human Genome assembly1: 8215.Chromosome Position in hg19 assembly2: 8215 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.