DNA Marker Index information for Chromosome: Y Marker: A1221Names and Aliases for this DNA Marker: A1221, Y12341, rs762402869.Chromosome Position in hg38 Human Genome assembly1: 16459620.Chromosome Position in hg19 assembly2: 18571500 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.