DNA Marker Index information for Chromosome: Y Marker: PF7421Names and Aliases for this DNA Marker: PF7421, Z28661, rs1051272687.Chromosome Position in hg38 Human Genome assembly1: 20910359.Chromosome Position in hg19 assembly2: 23072245 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.