DNA Marker Index information for Chromosome: Y Marker: Y6634Names and Aliases for this DNA Marker: Y6634, FGC9550, rs976982151.Chromosome Position in hg38 Human Genome assembly1: 21289179.Chromosome Position in hg19 assembly2: 23451065 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.