DNA Marker Index information for Chromosome: Y Marker: FGC18957Names and Aliases for this DNA Marker: FGC18957, rs921567031.Chromosome Position in hg38 Human Genome assembly1: 8047066.Chromosome Position in hg19 assembly2: 7915107 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.