DNA Marker Index information for Chromosome: Y Marker: BY33421Names and Aliases for this DNA Marker: BY33421, Y133944, rs916133983.Chromosome Position in hg38 Human Genome assembly1: 8423692.Chromosome Position in hg19 assembly2: 8291733 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.