DNA Marker Index information for Chromosome: Y Marker: FGC20581Names and Aliases for this DNA Marker: FGC20581, rs936033786.Chromosome Position in hg38 Human Genome assembly1: 8578572.Chromosome Position in hg19 assembly2: 8446613 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.