DNA Marker Index information for Chromosome: Y Marker: BY221554.1Names and Aliases for this DNA Marker: BY221554.1, BY221554.Chromosome Position in hg38 Human Genome assembly1: 20303707.Chromosome Position in hg19 assembly2: 22465593 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.