SUBJECT INDEX 



417 



Purines 63 et seq., 139 



— , biosynthesis 138 



— , derivatives, structure 136 



— , incorporation and mutagenicity 137 



— , metabolism 138 



— , phosphorylases 140 



Purine-purine transglycosidase 140 



Purine-pyrimidine transglycosidase 140 



Pyridoxine 208 



Pyrimidine phosphorylase 140 



Pyrimidines 65 



Quandrulus 222, 225 



Quantum theory 196, 231 , 242, 247 



q. 347 



Radiation {See Ionizing radiation, Ultraviolet 

 radiation) 



— damage 241, 252 et seq., 262 et seq., 

 276 et seq., 283 et seq., 287 et seq., 308, 

 395 



, protection from 273 



— exposure 342 



— hazards to man 297, 301, 338 



— injury 253, 331 



, irreversible 273, 339 



Radiation sensitivity 269 



Radicals, free 259 



^, lifetime of 243, 252 et seq. 



Radiobiology 190, 239, 252 et seq., 262 et 



seq., 276 et seq., 283 et seq., 287 et seq., 



292 et seq., 293, 297 

 Radiomimetic chemicals 355 

 Radiomimetics 309 

 Random networks, theory of 1 88 



— variables 230 



Rat 148, 208, 293, 335, 337 



Rate processes 327 



Rattus natalensis 303 



Reaction kinetics 56 



Receptors 372 



Recessive lethal mutations 301, 312 



Recovery 308, 322, 335 



— , from radiation damage 332 



Redundance 3, 33, 111, 116, 369 



— , in the germ cell 359, 360 



— , measures of 188 



Redundant information 3, 33, 189 



Rennin 115 



Replication, capacity for 125 



RepresentabiUty condition 31 



Representation, binary 8, 17, 20 



— theorem 17, 188 



Residues, correlations between adjacent 78 

 Reticulocytes 94 

 Retina 383 

 ReversibiHty 121 

 Riboflavin 204, 208 



Ribonuclease 69, 81, 86, 87, 104, HO, 116, 



125, 285, 288 

 Ribonucleic acid See RNA 

 Ribonucleoprotein 150 

 — , associated basophilic bodies 150 

 RNA 8, 52, 66, 70, 88, 90, 92, 101, 131, 138, 



278, 394 

 Rotifer 178, 309, 313 

 Ruling engines 376 



Salivary amylase 86 



Salmine 81, 104 



Salmonella gallinarum, typhimurium 54 



Salt bridges 109, 267 



Sample space 231,235 



Sarcosome 222 



Sciatic nerve, of frog 154, 155 



Screws, precision 376 



Sea pen 215 



Selection 322 



— rules 191 



Semantic information 194 

 Sequence 51, 107, 113, 135, 191, 194 

 Serine 70, 90, 138 

 — , protein-bound 72 

 Serum, normal blood 148 



— albumin 74, 81, 86, 104, 128, 150, 289, 

 290 



• , chicken 127 



Silk, irradiated 353 



— , X-irradiated 252-3 (Fig. 8) 



— fibroin (Bombyx) 8 1 , 1 04 

 Site, sense, non-sense 91 

 Solanin 115 



Somatic line 309 



Somatic mutation 344 



Soret band 174 



Southern bean mosaic virus 90, 93 



Specificity See Protein specificity 



— , antigenic 211 



— , code of 194 



Spectroscopic splitting factor, g 242 



Spin-orbit coupling 249 



Spleen homogenate 308 



Spores 276 



S-Sbond 116 



Staphylococcus aureus 1 3 1 



Stentor 223 



Stereocilium 222 



Stimulus, threshold of 154 



— threshold variations, possible sources of 

 159 



Stochastic process 321 



S^5 126 



Sulphur linkages, in proteins 109, 116, 239, 



257, 278, 283, 287, 292 

 Survival curves, exponential 300 

 , sigmoid 300 



