DNA Marker Index information for Chromosome: Y Marker: BY66Names and Aliases for this DNA Marker: BY66, FGC17143, Z18205.Chromosome Position in hg38 Human Genome assembly1: 11561210.Chromosome Position in hg19 assembly2: 13716886 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.