DNA Marker Index information for Chromosome: Y Marker: CTS221Names and Aliases for this DNA Marker: CTS221, S3385, rs758748335.Chromosome Position in hg38 Human Genome assembly1: 2956604.Chromosome Position in hg19 assembly2: 2824645 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.