Ribonucleic Acids:

1 RNA in Retrospect.- References.- 2 Transcription.- A. Purification and Physical Properties of RNA Polymerases.- B. The Mechanism of Transcription.- C. Inhibitors of RNA Polymerase.- D. Control of Prokaryote Transcription.- E. Control of Eukaryote Transcription.- References.- 3 Nuclear RNA.- A. Preparation of Nuclear RNA.- B. The Concept of Nucleus-specific RNA and Migrating RNA.- C. Heterogeneous Nuclear RNA (HnRNA).- D. Low-molecular-weight Nuclear RNA (LnRNA).- E. Chromosomal RNA (ChRNA).- References.- 4 Messenger RNA.- A. Isolation and Size of Specific Cellular mRNAs.- B. Translation in Cell-free Systems.- C. Nucleotide Sequence Analysis.- D. Architecture of mRNA Molecules.- E. Messenger RNA-Protein Complexes.- F. Turnover of mRNA.- G. Summary.- References.- 5 Transfer RNA and Cytokinins.- A. Purification of Amino Acid-specific tRNAs.- B. The Structure of tRNA.- C. Biosynthesis of tRNA.- D. The Aminoacylation of tRNA.- E. Ribosomal Binding Sites in tRNA Molecules.- F. Possible Roles of tRNAs in the Regulation of Gene Expression.- References.- 6 Ribosomal RNA.- A. The Structure of Ribosomal RNA.- B. The Role of Ribosomal RNA.- C. The Synthesis of Ribosomal RNA.- D. Concluding Remarks.- References.- 7 Translation of Messenger RNA.- A. Initiation of Translation in Prokaryotes.- B. Initiation of Translation in Eukaryotes.- C. Elongation in Prokaryotes.- D. Elongation in Eukaryotes.- E. Termination.- F. The Ribosome Cycle.- G. Translation of Polycistronic mRNA.- H. Regulation of Translation.- I. Concluding Remarks.- References.- 8 Mitochondrial RNA.- A. Experimental Problems Associated with the Isolation and Characterization of RNA from Mitochondria.- B. Mitochondrial Ribosomes.- C. Ribosomal RNA of Mitochondria from Yeast, Fungi, Protozoa, and Plants.- D. Ribosomal RNA of Animal Mitochondria.- E. Unusual Properties of Mitochondrial rRNA.- F. Transfer RNA.- G. Messenger RNA.- H. Genes Coding for Mitochondrial RNA.- I. Transcription and Turnover of RNA in Mitochondria.- J. Mitochondrial RNA in Cellular Function and Development.- K. Concluding Remarks.- References.- 9 Chloroplast RNA.- A. Isolation of Chloroplasts.- B. Extraction of Leaf and Chloroplast RNAs.- C. Transfer RNA.- D. Ribosomes.- E. Ribosomal RNA.- F. Messenger RNA.- G. RNA Synthesis in Isolated Chloroplasts.- H. RNA Synthesis in Developing Chloroplasts.- I. Concluding Remarks.- References.- 10 Isolation, Purification, and Fractionation of RNA.- A. Tissue Disruption.- B. Nucleoprotein Dissociation and Deproteinization.- C. Purification.- D. Fractionation.- References.