DNA Marker Index information for Chromosome: Y Marker: FGC74635Names and Aliases for this DNA Marker: FGC74635, Y135981, rs964316127.Chromosome Position in hg38 Human Genome assembly1: 17140181.Chromosome Position in hg19 assembly2: 19252061 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.