DNA Marker Index information for Chromosome: Y Marker: BY4225Names and Aliases for this DNA Marker: BY4225, Z27132, rs767539729.Chromosome Position in hg38 Human Genome assembly1: 18919300.Chromosome Position in hg19 assembly2: 21081186 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.