DNA Marker Index information for Chromosome: Y Marker: FGC66964Names and Aliases for this DNA Marker: FGC66964, rs985255739.Chromosome Position in hg38 Human Genome assembly1: 7950135.Chromosome Position in hg19 assembly2: 7818176 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.