DNA Marker Index information for Chromosome: Y Marker: FGC18981Names and Aliases for this DNA Marker: FGC18981, rs779125000.Chromosome Position in hg38 Human Genome assembly1: 14930464.Chromosome Position in hg19 assembly2: 17042344 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.