DNA Marker Index information for Chromosome: Y Marker: DF23.1Names and Aliases for this DNA Marker: DF23.1, DF23, S193.1, S193, rs773517566.Chromosome Position in hg38 Human Genome assembly1: 15662529.Chromosome Position in hg19 assembly2: 17774409 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.