DNA Marker Index information for Chromosome: Y Marker: BY33644Names and Aliases for this DNA Marker: BY33644, Y81718, rs981986189.Chromosome Position in hg38 Human Genome assembly1: 3019957.Chromosome Position in hg19 assembly2: 2887998 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: G.