DNA Marker Index information for Chromosome: Y Marker: L21Names and Aliases for this DNA Marker: L21, M529, S145, rs11799226.Chromosome Position in hg38 Human Genome assembly1: 13542548.Chromosome Position in hg19 assembly2: 15654428 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: G.