372 



PHYSIOLOGICAL GENETICS 



Gene, com pared in haploids, diploids, 

 tetraploids, 148 



cytoplasmic control, 279-2S0 



developmental control, 205 



different doses, 123 



heterozygous, 99 



interaction, 1">C> 



loss of chromosome material, 298 



molecule, 283 



nature of, 282 



pattern, 209 



part of higher unit, 299 



physics, 293 



pleiotropy, 287 



potency, 285 



products of hormone type, 182 



protoplasmic, 275 



quantity, 136, 301 



sick, 289-291, 295 



side-chain theory, 300 



size, 283 



theory of tomorrow, 303 



unstable, 288, 295 

 Genie environment, 107 

 ( ienomere hypothesis, 295 

 Germinal vesicle, bursting of, 264 

 Gluthatione and growth, 193 

 Goldfish, 260 

 Gonad and eye color, 183 

 Gradients, theory of, 203 

 Growth, by cell division, 212 

 by differentiation, 213 

 by increase in cell size, 212, 216 

 Growth hormone, 188 

 Guinea pigs, 49, 66, 70, 73, 82, 87, 



118, 226, 258 

 Gynandromorphism, 10, 124, 130, 



174-175, 181, 183, 261 

 Gypsy moth (see Lymantria dispar) 



II 



Habrobracon, 26, 164, 177, 183, 233, 



273 

 Harmozones, 182 

 Helix, 112 

 Hemmungsmissbildung, 39 



Beterogonic growth, 167, 210-211, 



215, 217 2 IS, 221 

 Homoeosis, 36, 116, 208, 313 

 Hormones, 181-182 



of pupation, 38 

 Horse, spotting in, 258 

 Hypomorphic gene, 103, 134 



Identical twins, 222, 226 

 Idiochromatin, 264 



Induction, 177, 179-181, 201 



Inert regions of chromosome, 284 



Insect development, 181 



Interaction of the genes, 156-157, 

 162 



Internal genetic environment, 156 



Intersexuality, 39, 40, 52, 66, 68, 

 124, 148, 172, 181, 188-189, 

 194-195, 229, 231, 238, 241, 285 



Intrachromosomal balance, 299 



Inversions, 306-307 



Invisibles, 312 



K 



Karyoplasmic ratio, 152 



L 



Larval characters, 207 



Lathyrus, flower color of, 114 



Lebistes, 261 



Lepidoptera (see Butterflies) 



Leptinotarsa, 5, 99 



Lethality, 42-44, 181, 298 



Liesegang rings, 204-205, 220, 252- 



253, 256-257, 261 

 Linum usitalissimum, 40 

 Lipochromes, 36 



Lymantria dispar, caterpillars, 52- 

 53, 72, 82, 114, 207, 251 



cytoplasmic heredity, 271, 273, 

 279 



dominance, 112-113 



geographic races, 55, 126, 270 



growth, 77 



