DNA Marker Index information for Chromosome: Y Marker: FGC50431Names and Aliases for this DNA Marker: FGC50431, rs1040393583.Chromosome Position in hg38 Human Genome assembly1: 19781694.Chromosome Position in hg19 assembly2: 21943580 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.