SUBJECT INDEX 



Acetabularia, 251 S., 278, 308, 310, 408 



Alkaline phosphatase, 307 



Allelism 



isoalleles, 179, 257, 368, 378 



multiple, 47, 177, 274, 353, 360 ff., 

 369, 397, 486 



position, 167, 170, 171, 178, 271 ff. 



presence-absence, 177, 186, 187 



pseudo, 50, 167 ff., 176, 271 ff., 340, 

 398 ff., 486 



quantity theory, 177, 360 ff. 



step, 112, 167, 400, 486 

 Amoeba, 308 

 Amphibia 



induction, 402 



lampbrush chromosomes, 22, 275 



merogony, 214 



oocyte, 20 ff., 28, 43, 44, 214, 275, 

 276, 298 



organizer, 407 ff. 



sex races, 403, 404, 463 

 Antirrhinum 



flowering hormones, 408 



macromutants, 481, 489 



species crosses, 481 

 Aphids 



control of chromosomes, 224, 238, 

 465, 466 



cycles, 238 



sex, 224, 465, 466 

 Araschnia levana-prorsa, 265 

 Ascaris 



diminution, 26, 60 ff., 74, 199, 237, 

 238, 255, 290 



germ track, 61 ff., 69, 199, 237, 290 



heterochromatin, 60 ff., 71, 74 



mitochondria, 208 



553 



Aspergillus, 171, 173, 174 

 Asymmetry, 381 

 Axolotl, 54 



Bacteria 



adaptation, 204 



chromosomes, 50 



genetics, 242, 282 



nutritional mutants, 103, 282 



sexuahty, 3 



transduction, 47 ff., 56 



transformation, 31, 47 ff., 56 

 Bacteriophage, 49 ff., 222, 244 

 Balance, genie, 249, 384 

 Balance theory of sex. See Sex 

 Balbiani ring, 297 

 Bar eyes in Drosophila 



determination, 348, 386 



development, 345, 386 



dosage, 345 ff. 



with extracts from Calliphora, 348, 

 386 



mosaics, 347 



position effect, 180, 366 



temperature action, 366 

 Barley (erectoides), 126, 491 

 Basidiomycetes, 215 

 Begonia, 295 

 Biochemical genetics, 247, 251, 285, 



305, 366, 388 ff., 394 

 Blatta sperm, 54 

 Blepharisma, 301 ff. 

 Blood groups, 171, 180, 256, 283 

 Bombyx, See Silkworm 

 Bonellia, 458, 462, 464 

 Bryozoa, polyspermy, 54 

 Butterflies, See Lepidoptera 



