DNA Marker Index information for Chromosome: Y Marker: BY55490.1Names and Aliases for this DNA Marker: BY55490.1, BY55490.Chromosome Position in hg38 Human Genome assembly1: 21478400.Chromosome Position in hg19 assembly2: 23640286 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.