DNA Marker Index information for Chromosome: Y Marker: FTB21948Names and Aliases for this DNA Marker: FTB21948, rs369993466.Chromosome Position in hg38 Human Genome assembly1: 26341642.Chromosome Position in hg19 assembly2: 28487789 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.