The production of ribosomal RNA from high molecular weight precursors. I. Factors which influence the ability of isolated nucleoili to process 45-S RNA.

Carbon Isotopes Cell Nucleolus/metabolism Deoxyribonucleases Electrophoresis In Vitro Techniques L Cells Magnesium Methionine Nucleotidyltransferases Phosphorus Isotopes Polyvinyls RNA/biosynthesis Sodium Chloride Sulfhydryl Compounds Tritium Uridine/analysis

Carbon Isotopes Phosphorus Isotopes Polyvinyls Sulfhydryl Compounds Tritium Sodium Chloride RNA Methionine Nucleotidyltransferases Deoxyribonucleases Magnesium Uridine