DNA Marker Index information for Chromosome: Y Marker: CTS203.1Names and Aliases for this DNA Marker: CTS203.1, CTS203, rs771510282.Chromosome Position in hg38 Human Genome assembly1: 2939441.Chromosome Position in hg19 assembly2: 2807482 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.