Machine generated contents note: Section 1 Most Commonly Used Solutions -- A. Stock Solutions, 1 -- B. Biological Buffers, 13 -- C. Proteins, Enzymes, and Antibiotics, 27 -- D. Reagents for the Analysis, Labeling, and Synthesis of Nucleic Acids, 35 -- Section 2 Macromolecular Preparation and Purification Reagents -- A. DNA, 43 -- B. RNA, 47 -- C. Protein, 53 -- Section 3 Electrophoretic Separation of Proteins and Nucleic Acids -- A. Electrophoresis of DNA, RNA, and Protein, 63 -- B. Transfer, Hybridization, and Screening of DNA, RNA, and Protein, 81 -- Section 4 Visualizing Genes and Gene Products -- A. Use of Antibodies for Immunochemical Approaches: A Guide, 95 -- B. Fixatives, 101 -- C. Cytological Stains, Chromogen Substrates, and Fluorophores, 105 -- D. Mounting Media, 119 -- E. Microscopy Information, 123 -- Section 5 Specialized Media, Buffers, and Reagents -- A. Most Commonly Used Bacterial Media and Solutions, 133 -- B. Yeast, 139 -- C. Xenopus, 155 -- D. Mammalian Cell Culture, 161 -- Section 6 Storage and Shipment of Biological Samples, 169.