Ribosomal precursor RNA in Saccharomyces carlsbergensis.

Carbon Isotopes Cell Nucleus Centrifugation, Density Gradient Culture Media Genetics, Microbial Methionine/metabolism Methylation Molecular Weight Mutation Nucleotides/metabolism Phosphorus Isotopes Protoplasts/metabolism RNA/metabolism RNA, Transfer/metabolism Ribosomes/metabolism Saccharomyces/metabolism Spectrophotometry Tritium Uracil/metabolism Uridine/metabolism

Carbon Isotopes Culture Media Nucleotides Phosphorus Isotopes Tritium Uracil RNA RNA, Transfer Methionine Uridine