586 



SUBJECT INDEX 



Thymocytes, deoxyribonucleic acid and, 



79 

 Thymus, radiation effects, 535-536, 539, 



544 

 Tobacco mosaic virus 



action spectrum of, 91 



azaguanine and, 276 



birefringence and, 268 



chemical inactivation, 273-275 



degradation of, 255 



dimensions of, 252-255 



5-fluorouracil and, 277-278 



formaldehyde and, 273-274 



infection, phases of, 284-285, 286 



infectious process of, 283 



infectious ribonucleic acid 

 chemical inactivation, 273-275 

 components of, 288 

 host cell and, 283-288, 

 molecular weight of, 260-263 

 ribonuclease and, 262-263 



metal content, 259 



mutants, production of, 280-282 



photochemical behavior of, 60-61 



photoreactivation of, 96-98 



polysaccharide extraction and, 257 



proteins of 



content of, 258-259 

 preparation of, 256 

 synthesis of, 287-288 



quantum yields for inactivation, 94-95 



reconstitution of, 289-290 



ribonucleic acid of 

 analog incorporation and, 275-278 

 arrangement of, 252-255 

 chemicals, action of, 273-275 

 detergent preparations of, 257-258 

 enzyme degradation and, 271-273 

 heat inactivation of, 271 

 infectivity of, 258 

 metal content, 259 

 molecular weight of, 260-263 

 optical rotation and, 267-268 

 nitrous acid inactivation of, 278-282 

 phenol preparation, 257, 287 

 preparation of, 256-259 

 properties in solution, 265-266 

 protein binding and, 290-291 

 ribonuclease and, 285-287 

 sensitive size of, 278, 280 

 structure of, 263-266 



synthesis of, 287-288 



ultraviolet absorption, 266-267, 290 



ultraviolet irradiation 5nd, 269-271, 

 283-285 



X-ray, action of, 268-269 

 structure of 252-255 

 2-thiouracil and, 276-277 

 ultraviolet irradiation and, 80-82, 94- 



95, 269-271, 283-285 

 X-ray irradiation and, 269 

 Toxoplasma, and tetrahydrofolic acid, 



metabolism, 470 

 Transfer ribonucleic acid 

 adenosine monophosphate and, 379-380 

 amino acid activating enzymes, 380-384 

 amino acid activation and, 381 

 amino acid attachment and, 380-384 

 amino acid incorporation and, 392 

 base composition, 374-375 

 coding fragments and, 405 

 cytidine monophosphate and, 377-380 

 cytidine triphosphate and, 378, 379, 380 

 molecular weight, 379 

 occurrence, 373-374 

 origin of, 407-408 

 preparation, methods, 372-374 

 protein synthesis and, 386-394 

 purification of, 376 

 terminal nucleotides of 



attachment mechanism, 379-380 



end group precursors, 378-379 



end groups of, 378 



enzymes for, 379 



site of incorporation, 376-378 

 Transforming deoxyribonucleic acid 

 hemolytic streptococci, 83 

 H. influenzae and, 89-90 

 photoreactivation and, 88-90, 97-99 

 pneumococcal, 83-84 

 ultraviolet inactivation and, 82-85 

 Triazine derivatives, nucleic acids and, 



512 

 Triphosphopyridine nucleotide, ultra- 

 violet irradiation and, 67-68 

 Triuret, 66 

 Trypsin, 34 



Ultracentrifuge, 5 

 Ultraviolet inactivation 



