DNA Marker Index information for Chromosome: Y Marker: FGC6778Names and Aliases for this DNA Marker: FGC6778, rs866261579.Chromosome Position in hg38 Human Genome assembly1: 19136583.Chromosome Position in hg19 assembly2: 21298469 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.