title: Letter: Location and arrangement of genes coding for ribosomal RNA in Saccharomyces cerevisiae.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002874:Chromosome Mapping; D004247:DNA / Q000032:analysis; D004171:Diploidy; D005796:Genes; D007553:Isotope Labeling; D009693:Nucleic Acid Hybridization; D010761:Phosphorus Radioisotopes; D012335:RNA, Ribosomal; D012441:Saccharomyces cerevisiae / Q000032:analysis*; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D010761:Phosphorus Radioisotopes; D012335:RNA, Ribosomal; D014316:Tritium; D004247:DNA