DNA Marker Index information for Chromosome: M Marker: H2a1n'Names and Aliases for this DNA Marker: H2a1n', H2a1-a, H2a1-T146C!.Chromosome Position in hg38 Human Genome assembly1: 146.Chromosome Position in hg19 assembly2: 146 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.