DNA Marker Index information for Chromosome: Y Marker: DF27Names and Aliases for this DNA Marker: DF27, S250, rs577478344.Chromosome Position in hg38 Human Genome assembly1: 19218314.Chromosome Position in hg19 assembly2: 21380200 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.