DNA Marker Index information for Chromosome: Y Marker: FGC13977Names and Aliases for this DNA Marker: FGC13977, Y3476, Z18425, rs775209443.Chromosome Position in hg38 Human Genome assembly1: 6790832.Chromosome Position in hg19 assembly2: 6658873 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: T.