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This journal provides immediate access to some articles. Volume 68(7); July 1971 Article N.A.S. ANNUAL MEETING.—SCIENTIFIC PROGRAM AND ABSTRACTS OF CONTRIBUTED PAPERS PMCID: PMC389201 Biological Sciences: Biochemistry Subunit Structure of the Phycobiliproteins of Blue-Green Algae PMCID: PMC389203 Regulation of Formation and Proposed Structure of the Factor Inhibiting the Release of Melanocyte-Stimulating Hormone PMCID: PMC389210 Regulation of the Synthesis of Choline-O-Acetyltransferase and Thymidylate Synthetase in Mouse Neuroblastoma in Cell Culture PMCID: PMC389212 Cascade Chromatography and Automated Multidimensional Fractionation PMCID: PMC389214 Antibodies Reactive with Native Lysozyme Elicited by a Completely Synthetic Antigen PMCID: PMC389215 A Translocation-Associated Ribosomal Conformation Change Detected by Hydrogen Exchange and Sedimentation Velocity PMCID: PMC389221 Soluble Complexes between Steroid Hormones and Target-Tissue Receptors Bind Specifically to Target-Tissue Chromatin PMCID: PMC389222 Specificity of the Antibody Receptor Site to D-Lysergamide: Model of a Physiological Receptor for Lysergic Acid Diethylamide PMCID: PMC389223 An Attempt to Locate the Non-helical and Permissively Helical Sequences of Proteins: Application to the Variable Regions of Immunoglobulin Light and Heavy Chains PMCID: PMC389227 Primer Requirement and Template Specificity of the DNA Polymerase of RNA Tumor Viruses PMCID: PMC389228 Acetyl CoA Carboxylase: Isolation and Characterization of Native Biotin Carboxyl Carrier Protein PMCID: PMC389229 Biological Roles of the Two Components of Crotoxin PMCID: PMC389240 Immunological Evidence for an Inactive Precursor of Collagen Proline Hydroxylase in Cultured Fibroblasts PMCID: PMC389246 DNA Polymerase Activities and Nucleic Acid Components of Virions Isolated from a Spontaneous Mammary Carcinoma from a Rhesus Monkey PMCID: PMC389252 Hormone-Controlled Synthesis of Endoplasmic Reticulum in Barley Aleurone Cells PMCID: PMC389256 Role of Exonuclease and β Protein of Phage λ in Genetic Recombination, V. Recombination of λ DNA in Vitro PMCID: PMC389258 Further Changes in Differentiation State Accompanying the Conversion of Chinese Hamster Cells to Fibroblastic Form by Dibutyryl Adenosine Cyclic 3′:5′-Monophosphate and Hormones PMCID: PMC389260 Mechanism of Action of Vitamin K: Evidence for the Conversion of a Precursor Protein to Prothrombin in the Rat PMCID: PMC389261 Mechanism of Oxidative Carbon Dioxide Production during Renilla reniformis Bioluminescence PMCID: PMC389262 Biological Sciences: Botany The Origin of Novel Flavonoids in Phlox Allotetraploids PMCID: PMC389255 Biological Sciences: Genetics Turnover of Genetically Defined Catalase Isozymes in Maize PMCID: PMC389204 Expression of Two X-Linked Genes in Human Hair Follicles of Double Heterozygotes PMCID: PMC389209 Bacterial Mutants Defective in Plasmid Formation: Requirement for the lon+ Allele PMCID: PMC389220 Hypoxanthine-Guanine Phosphoribosyltransferase Deficiency: Chemical Agents Selective for Mutant or Normal Cultured Fibroblasts in Mixed and Heterozygote Cultures PMCID: PMC389230 Identification of the Mouse Karyotype by Quinacrine Fluorescence, and Tentative Assignment of Seven Linkage Groups PMCID: PMC389233 Transplantation of Nuclei in Drosophila melanogaster PMCID: PMC389235 Constitutive Mutants in a Regulatory Gene Exerting Positive Control of Quinic Acid Catabolism in Neurospora crassa PMCID: PMC389239 The First Steps of Magnification of DNA Complementary to Ribosomal RNA in Drosophila melanogaster PMCID: PMC389245 Cytological Identification of the Chromosome Carrying the IXth Linkage Group (Including H-2) in the House Mouse PMCID: PMC389248 Biological Sciences: Immunology Natural Thymocytotoxic Autoantibody and Reactive Antigen in New Zealand Black and Other Mice PMCID: PMC389206 Quantitative Two-Dimensional Ultrastructural Distribution of Rho(D) Antigenic Sites on Human Erythrocyte Membranes* PMCID: PMC389207 Site-Directed Cross-Linking: A New Approach to Mapping Antibody Combining Sites PMCID: PMC389208 Interchain and Intrachain Disulfide Bridges of a Human Immunoglobulin M: Detection of a Unique Fragment PMCID: PMC389237 In Vitro Desensitization of Sensitized Murine Lymphocytes by a Serum Factor (Soluble Antigen?) PMCID: PMC389257 Immunological Tolerance: “Forbidden Clones” Allowed in Tetraparental Mice PMCID: PMC389259 Biological Sciences: Medical Sciences Effect of Rifampicin and Two of Its Derivatives on Cells Infected With Moloney Sarcoma Virus PMCID: PMC389213 Spontaneous Precipitation of Brushite in Urine: Evidence that Brushite Is the Nidus of Renal Stones Originating as Calcium Phosphate PMCID: PMC389216 Purification of IMP:Pyrophosphate Phosphoribosyltransferases, Catalytically Incompetent Enzymes in Lesch-Nyhan Disease PMCID: PMC389217 Induction of Colonies of Hemoglobin-Synthesizing Cells by Erythropoietin In Vitro PMCID: PMC389236 Prolonged Survival of Glutaraldehyde-Treated Skin Homografts PMCID: PMC389247 Antitumor Activity and Toxicity of Salts of Inorganic Group IIIa Metals: Aluminum, Gallium, Indium, and Thallium PMCID: PMC389254 Biological Sciences: Microbiology Serologic Evidence that a Herpes-Type Virus is the Etiologic Agent of Heterophile-Positive Infectious Mononucleosis PMCID: PMC389205 Valinomycin-Induced Uptake of Potassium in Membrane Vesicles from Escherichia coli PMCID: PMC389224 Nature and Self-Regulated Synthesis of the Repressor of the hut Operons in Salmonella typhimurium PMCID: PMC389225 Transformation of Mouse 3T3 Cells by Murine Sarcoma Virus: Release of Virus-Like Particles in the Absence of Replicating Murine Leukemia Helper Virus PMCID: PMC389231 Components of Adenovirus-Simian Virus 40 Hybrid Viruses PMCID: PMC389232 Ultrastructural Comparison of a Virus from a Rhesus-Monkey Mammary Carcinoma with Four Oncogenic RNA Viruses PMCID: PMC389250 Serological and Structural Properties of Mason-Pfizer Monkey Virus Isolated from the Mammary Tumor of a Rhesus Monkey PMCID: PMC389251 Biological Sciences: Physiology Stereological Measurements of Cardiac Ultrastructures Implicated in Excitation-Contraction Coupling PMCID: PMC389218 Composition of Basal and Stimulated Hepatic Bile in Baboons, and the Formation of Cholesterol Gallstones PMCID: PMC389241 Renal Gluconeogenesis in Eviscerated Diabetic Rats PMCID: PMC389253 Biological Sciences: Psychology Hearing in the Crocodilia PMCID: PMC389226 Social Recovery by Isolation-Reared Monkeys PMCID: PMC389234 Biological Sciences: Zoology Selective Induction by Nerve Growth Factor of Tyrosine Hydroxylase and Dopamine-β-Hydroxylase in the Rat Superior Cervical Ganglia PMCID: PMC389249 Physical Sciences: Applied Mathematics Stability of Plane Poiseuille Flow to Periodic Disturbances of Finite Amplitude, III PMCID: PMC389211 Physical Sciences: Chemistry Structure of Concanavalin A at 4.25-Ångström Resolution PMCID: PMC389202 Acyclic Ketones in the Defensive Secretion of a “Daddy Longlegs” (Leiobunum vittatum) PMCID: PMC389219 Microbial Metabolism of the Isoprenoid Alkane Pristane PMCID: PMC389238 Laser Raman Investigation of the Effect of Cholesterol on Conformational Changes in Dipalmitoyl Lecithin Multilayers PMCID: PMC389243 Physical Sciences: Geophysics Attenuation of Seismic Waves by Grain Boundary Relaxation PMCID: PMC389244 Physical Sciences: Physics Effect of Gravity on Osmotic Equilibria PMCID: PMC389242 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||