Subject Index 



Aberrant tetrads, 197-202 

 Abortive transduction, 129-130, 162 

 Acetabularia, 305-307, 358 

 Acridine dyes, 268-269 



effect on F factor, 143, 146 



eu flavin and yeast, 255-256 



proflax'in as a mutagen, 216, 232 



trypoflavin, 246 

 Action spectrum, photoreactivation, 225 



UV and mutation, 224 

 Activator (Ac), 342-346 

 Active site, 290, 331 

 ad-4 locus, 292-297 

 Adenine, 5-12 



mutagen, 212-213 



RNA syntfiesis, 317-318 

 Adenine svnthesis, 154-157, 171 

 Adenosine, 5 



antimutagen, 212-213 

 Adenylic acid, 5, 7 



Adenylosuccinase, 168, 277, 292-297 

 Aegilops, 105 



Alkylating agent, 217, 231-232 

 Allele, 31 



allelic complementation, 291 



cis-trans test, 162 



definitions, 40, 62, 151 



multiple, 171 



segregation in Sordaria. 200-201 



transformation, 20 

 Alpha helix, 284-285 

 Altered enzymes, ,274-280 



Altered enzvmes, in suppressed mutants, 298 

 Amino acid sequence, 280 



cytochrome c, 290 



folding, 284-291,289-290 



hemoglobin, 281 



insulin, 285 



ribonuclease, 285-287 

 2-Aminopurine, 169, 212, 216 

 Amorph, 99 



Amphidiploid, 104-105 

 Anaphase, 68-71, plates VI and VII 

 Anaphase bridge, 103 

 Aneuploidy, 106, 369, 370 

 Antibody formation, 384 

 Antigen, ABO, 374-375 



blood, 374-375 



enzymes, 276 



in Paramecium, 348-350 



MN, 85-87 



tissue incompatibility, 372-374 

 Antigenic variation, blood groups, 374-375 



Paramecium, 348-350 



Salmonella, 347-348 



tumors, 372-374 

 Antimutagen, 212-213, 216 

 Arginine synthesis. 29-31, 327-329 

 Ascaris, 357 

 Ascospore, Neurospora, 67 



Sordaria, 200-201 

 Ascus, in Neurospora, 67-69 



in Sordaria, 200-201 

 Asexual reproduction, 2, 71-73 



407 



