DNA Marker Index information for Chromosome: Y Marker: Y20407.3Names and Aliases for this DNA Marker: Y20407.3, BY1984.3, rs964574376.Chromosome Position in hg38 Human Genome assembly1: 20157503.Chromosome Position in hg19 assembly2: 22319389 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.