DNA Marker Index information for Chromosome: Y Marker: A40Names and Aliases for this DNA Marker: A40, FGC5583, rs1003552523.Chromosome Position in hg38 Human Genome assembly1: 8231047.Chromosome Position in hg19 assembly2: 8099088 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.