DNA Marker Index information for Chromosome: Y Marker: Z31644Names and Aliases for this DNA Marker: Z31644, FGC40707, rs1286942323.Chromosome Position in hg38 Human Genome assembly1: 23156683.Chromosome Position in hg19 assembly2: 25302830 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.