DNA Marker Index information for Chromosome: Y Marker: FGC66980Names and Aliases for this DNA Marker: FGC66980, rs901810840.Chromosome Position in hg38 Human Genome assembly1: 17444344.Chromosome Position in hg19 assembly2: 19556224 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.