DNA Marker Index information for Chromosome: Y Marker: F23904.2Names and Aliases for this DNA Marker: F23904.2, rs866263597.Chromosome Position in hg38 Human Genome assembly1: 18947649.Chromosome Position in hg19 assembly2: 21109535 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.