DNA Marker Index information for Chromosome: Y Marker: FGC19633Names and Aliases for this DNA Marker: FGC19633, rs904057493.Chromosome Position in hg38 Human Genome assembly1: 8639671.Chromosome Position in hg19 assembly2: 8507712 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: C.