DNA Marker Index information for Chromosome: Y Marker: B320.1Names and Aliases for this DNA Marker: B320.1, B320, rs866533499.Chromosome Position in hg38 Human Genome assembly1: 2998261.Chromosome Position in hg19 assembly2: 2866302 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.