DNA Marker Index information for Chromosome: Y Marker: F20770.1Names and Aliases for this DNA Marker: F20770.1, F20770, rs771818485.Chromosome Position in hg38 Human Genome assembly1: 14402130.Chromosome Position in hg19 assembly2: 16514010 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.