DNA Marker Index information for Chromosome: Y Marker: M12121.2Names and Aliases for this DNA Marker: M12121.2, rs561979445.Chromosome Position in hg38 Human Genome assembly1: 19654449.Chromosome Position in hg19 assembly2: 21816335 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: G.