DNA Marker Index information for Chromosome: Y Marker: FGC66737Names and Aliases for this DNA Marker: FGC66737, rs763038741.Chromosome Position in hg38 Human Genome assembly1: 20693431.Chromosome Position in hg19 assembly2: 22855317 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.