DNA Marker Index information for Chromosome: Y Marker: PF257.1Names and Aliases for this DNA Marker: PF257.1, PF257, rs1246826354.Chromosome Position in hg38 Human Genome assembly1: 7851810.Chromosome Position in hg19 assembly2: 7719851 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.