DNA Marker Index information for Chromosome: Y Marker: BY21118Names and Aliases for this DNA Marker: BY21118, Y34585, rs982254209.Chromosome Position in hg38 Human Genome assembly1: 16712845.Chromosome Position in hg19 assembly2: 18824725 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.