DNA Marker Index information for Chromosome: Y Marker: F12930Names and Aliases for this DNA Marker: F12930, Z31639, rs764108622.Chromosome Position in hg38 Human Genome assembly1: 19345637.Chromosome Position in hg19 assembly2: 21507523 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.