DNA Marker Index information for Chromosome: Y Marker: Y201021.1Names and Aliases for this DNA Marker: Y201021.1, Y201021.Chromosome Position in hg38 Human Genome assembly1: 19644504.Chromosome Position in hg19 assembly2: 21806390 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.