DNA Marker Index information for Chromosome: Y Marker: FTB81253Names and Aliases for this DNA Marker: FTB81253, rs969952042.Chromosome Position in hg38 Human Genome assembly1: 12978819.Chromosome Position in hg19 assembly2: 15090730 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.