DNA Marker Index information for Chromosome: Y Marker: Z40794.1Names and Aliases for this DNA Marker: Z40794.1, Z40794, rs777734689.Chromosome Position in hg38 Human Genome assembly1: 19694016.Chromosome Position in hg19 assembly2: 21855902 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.