DNA Marker Index information for Chromosome: Y Marker: DF25Names and Aliases for this DNA Marker: DF25, S253, rs749187297.Chromosome Position in hg38 Human Genome assembly1: 2958025.Chromosome Position in hg19 assembly2: 2826066 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: G.