DNA Marker Index information for Chromosome: Y Marker: BY4191.1Names and Aliases for this DNA Marker: BY4191.1, BY4191.Chromosome Position in hg38 Human Genome assembly1: 20520467.Chromosome Position in hg19 assembly2: 22682353 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.