DNA Marker Index information for Chromosome: Y Marker: BY303.4Names and Aliases for this DNA Marker: BY303.4, Y13228.4.Chromosome Position in hg38 Human Genome assembly1: 16804327.Chromosome Position in hg19 assembly2: 18916207 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.