DNA Marker Index information for Chromosome: Y Marker: BY139751.1Names and Aliases for this DNA Marker: BY139751.1, BY139751.Chromosome Position in hg38 Human Genome assembly1: 20488304.Chromosome Position in hg19 assembly2: 22650190 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.