DNA Marker Index information for Chromosome: Y Marker: Z1936Names and Aliases for this DNA Marker: Z1936, N3a4, rs774008164.Chromosome Position in hg38 Human Genome assembly1: 19301440.Chromosome Position in hg19 assembly2: 21463326 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.