DNA Marker Index information for Chromosome: Y Marker: BY139637.1Names and Aliases for this DNA Marker: BY139637.1, BY139637.Chromosome Position in hg38 Human Genome assembly1: 20468514.Chromosome Position in hg19 assembly2: 22630400 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.