DNA Marker Index information for Chromosome: Y Marker: BY21075Names and Aliases for this DNA Marker: BY21075, Y30755, rs972190320.Chromosome Position in hg38 Human Genome assembly1: 13797046.Chromosome Position in hg19 assembly2: 15908926 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: A.