DNA Marker Index information for Chromosome: Y Marker: FTA71646.1Names and Aliases for this DNA Marker: FTA71646.1, FTA71646, Y258343.Chromosome Position in hg38 Human Genome assembly1: 19573944.Chromosome Position in hg19 assembly2: 21735830 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.