Actions of Radiations on Living Cells |
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Contents
Prefaces page | 1 |
Ionization excitation and pointheat p 1 Ultraviolet light p 3 Xrays | 30 |
The ionic yield p 33 Gas reactions p 34 Liquids and solids p 37 Solutions | 42 |
Ionic yields in aqueous solution p 45 Chemical mechanism of the indirect action | 60 |
Cell poisons p 64 Activated water reactions p 64 Direct action on large | 66 |
Recognition of the singleionization type of action p 71 Shape of survival | 91 |
The assumptions of the singleionization target theory p 92 The validity | 98 |
The viruses p 100 The sizes of the viruses p 102 The estimation of virus | 108 |
Modifying factors p 220 Dependence of the yield of structural changes | 237 |
The Mechanism of Induction of Chromosome | 245 |
Proportion of breaks which restitute in Tradescantia p 253 Dependence of | 262 |
The relative efficiencies of different radiations p 269 Isochromatid breaks | 279 |
of division which is subject to delay p 293 Rapidly dividing tissues p 295 | 295 |
Increase of cell size p 300 The relative efficiencies of different radiations | 303 |
Death precipitated by division p 307 The cause of death at division p | 311 |
The inactivation of viruses p 313 The killing of bacteria p 316 The killing | 324 |
Exponential survival curves p 112 Independence of inactivation dose | 124 |
Genetical Effects of Radiation page | 126 |
The mechanism of heredity p 126 Mutations p 131 The nature of genes | 161 |
Deductions concerning the size of the gene p 172 Cosmic rays and mutations | 181 |
The Production of Chromosome Structural | 189 |
TYPES OF STRUCTURAL CHANGE p | 197 |
Chromosome breaks p 199 Chromatid breaks p 201 Isochromatid breaks | 207 |
Interchanges p 207 Relative frequency of interchanges and intrachanges | 217 |
Drosophila melanogaster p 329 Tradescantia p 332 The bean root p 335 | 335 |
Lethal physiological changes in chromosomes p 337 Hereditary partial | 341 |
Supplementary Calculations page | 345 |
Textual Revisions and Additions | 364 |
Location of breaks p 366 Frequency relations p 366 Modifying factors | 373 |
| 396 | |
| 404 | |
Common terms and phrases
a-rays aberrations absorption action activity anaphase appears associated bacteriophages breakage breaks calculation cause cells Chapter chemical chromatid chromatid breaks chromosome compared concentration curve deficiencies delay determined diameter discussed dissipation distribution division dose Drosophila effect efficiencies electron ends energy equal estimate evidence exchanges expected experimental experiments explained fact factor fertilized figures fraction gene give given inactivation increase independent induced intensity interchanges ionizing particle ions irradiated isochromatid breaks length less lethal male material mean metaphase method minute molecule mutation neutrons nucleus observed obtained occur organisms plant pollen possible present primary probability produced proportion radiation radicals range ratio reaction relative roentgens separate shown single ionization solute sperm stage studied suggested Table target theory tion tissue track Tradescantia ultra-violet light unit usually values various virus viruses volume wave-length X-rays y-rays yield
Popular passages
Page 380 - The Production of Chromosome structural Changes in Tradescantia Microspores in Relation to Dosage, Intensity and Temperature.