DNA Marker Index information for Chromosome: Y Marker: BY191818.1Names and Aliases for this DNA Marker: BY191818.1, BY191818.Chromosome Position in hg38 Human Genome assembly1: 19651773.Chromosome Position in hg19 assembly2: 21813659 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.