340 



Inbreeding depression, 53, 171 

 Incest taboos, 289 

 Incompatibibty systems, 172 

 Indian elephant, 254 

 Indians, American, culture of, 291 

 Individual, 73-75, 82 

 Individuals, number of, 80 



size of, and recombination, 79 

 Induction, 63 



Industrial melanic moths, 247 

 Industrial melanism, 46, 125-131 

 Infection, 165 



Information, genetic {see Genetic informa- 

 tion) 

 nongenetic, 281 

 Insecticides, 148, 150 

 Insects, 200, 267 

 Interclone selection, 248 

 Interference, 41, 46 

 Intergroup selection, 122 

 Intersexuabty, 218 

 Interspecific territories, 240 

 Interstitial segment of chromosomes, 178 

 Intragroup selection, 122 

 Intrapopulational variation, 213 

 Introgressive hybridization, 240-242 



{See also Hybridization) 

 Inversion type in Drosophila, Arrowhead 

 (AR), 140-145 

 Chiricahua (CH), 140-145 

 Pikes Peak (PP), 144-145 

 Standard (ST), 140-145 

 Inversions, chromosomal, 47, 49-51, 139- 

 145, 176, 177, 180 

 paracentric, 176, 180 

 pericentric, 177, 182 

 Ionizing radiation, 1 13, 292 

 Irish elk, 275 

 Island model, 116 

 Isolation, 237 



behavioral, 223, 237 

 by distance, 116 

 sexual, 242 



Jacob, 64, 65, 68 



Japanese iris, 190 



Java man, 284, 285 



Jaw structure, evolution of, 66 



Johnson, 240 



Joining, 260 



Kangaroos, 265 



Kappa particles, 164 



Karyotype, 175, 180 



Keck, D. D., 154, 155, 213, 214, 249 



Kemp, 146 



KetdeweU, 126-130, 312 



Killer strains of Paramecium, 164, 165 



King, 63 



Kinship systems, 287 



Kiriakoff, 312n. 



Koalas, 265 



Koopman, 242 



Krausel, 255 



L (limited) chromosomes, 187, 188 

 Lacerta saxicola, 204 

 Lack, 224, 249 

 Lamotte, 133, 136, 159 

 Language, 287, 288, 296-298 

 Eskimo, 287, 297 

 and evolutionary theory, 296 

 Gaucho, 297 

 Hopi, 297, 298 

 Indo-European, 297 

 Latimeria, 258 

 Lederberg, 163 

 Leopard frog, 215 

 Lemer, 59, 152, 153, 159 

 Lethal genes, 182 

 Lethal screen, 200 

 Lewis, 180-182 

 Lewontin, 128n. 

 Li, C. C., 95, 105, 123 

 Lichens, 73, 225, 299 



Life cycle, diploid, 167 

 haploid, 167 



Limited chromosomes, 187, 188 



Linaceae, 147 



Linanthus, 236 

 pamjae, 234-236 



Linkage, 40, 41, 47, 50, 117, 148, 162, 163 



Linnaeus, 37 



Linton, R., 291, 293 



Liniim, 147 



Upids, 23, 24, 26 



Liverworts, 168 



Living fossils, 258 



Lizards, 204 



Lolium perenne, 191 



Lorkovic, 220, 223 



