Abrams, 178, 235 

 Acentric fragments, 49 

 Achillea, 213, 230 



horealis, 214 



lanulosa, 154, 214 



millefolium, 213 

 Acrocentric chromosomes, 186 

 Adaptation, 157,311,312 



and gene combinations, 120 

 Adaptive peaks, 120, 121 

 Adaptive radiation, 264-266 



in plants, 266 

 Adaptive value, 104 

 Adaptive zone, 263-267, 270, 272 



access to, 267 

 Adenosine diphosphate (ADP), 10, 26 

 Adenosine triphosphate (ATP), 10, 12, 26 

 ADP, 10, 26 



Adventitious embryony, 199, 200 

 African elephant, 254 

 Agamic complex, 201, 202, 204 

 Agamospermy, 199 



Age, geological, determination of, 260, 261 

 Alaska brown bear, 257 

 Alcidis agathijrsus, 271, 273 

 Algae, 73, 166, 167, 194 



{See also Blue-green algae; Brown algae; 

 Green algae) 

 Alleles,38,42,92,93, 111, 118 



multiple, 42 

 Allen'srule, 213, 232 

 Allison, A. C, 145, 158 

 Allium, 31, 74, 198 



cepa, 191 



fistulosum, 191 

 Allometry and antlers, 275 

 Allopatric speciation, 247 

 Allopolyploidy, 190-195, 202, 204, 206, 247 



segmental, 191, 195 

 Allotetraploidy, 190, 191, 194 

 Alterations of chromosomes, 48-51 

 Alternation of generations, 167, 168 

 Ameiotic thelytoky, 201, 203 

 Amino acids, 6-8, 17, 18 

 Amphidiploidy, 186, 191 

 Anaphase, 27-30, 33, 34 

 Andrewartha, H. G., 83, 88 

 Andrews, 255 

 Aneupolyploidy, 184-189 



Angiosperms, 83, 84, 270 



Annelida, 196 



Annual plants, recombination in, 183 



Anteater, banded, 265 



Anthropocentrism, 295, 296 



Antibiotics, 148, 150 



Antlers and allometry, 275 



Apes, anthropoid, 67, 252 



Aphids, 201, 205, 206 



Apogamety, 199 



Apomixis, 183, 194, 196-207, 241 



in vertebrates, 204, 205 

 Apospory, 199, 200 

 Apples, 190, 194 

 Arachnids, 200 



Arboreal existence of prehominids, 281-28-3 

 Archaeopterijx, 273 

 Archosaurian reptiles, 259, 260, 264 

 Aristolochia swallowtail butterfly, 232 

 Aristolochia watsonii, 87 

 Aristotle, 291 

 Arrhenotoky, 200 

 Arteinia salina, 204 

 Artificial selection, 103, 150 

 Ascaris, 245 



lumbricoides, 230 



suum, 230 

 Asclepiadaceae, 258, 271 

 Asclepias, 232 



tuherosa, 214, 215, 232-234 

 Ascomycetes, 168 

 Asexuid reproduction, 196, 197, 247, 299 



{See also Apomixis) 

 Asplenium, 192-194 



bradleyi, 192-194 



ebenoides, 192, 194 



gravesii, 193, 194 



montanum, 193, 194 



pinnatifidum, 193, 194 



platijneuron, 192, 194 



rhizaphyllum, 192-194 



trudellii, 193, 194 

 Assortative mating, negative, 170, 172 



positive, 170, 171 

 Aster, 27 

 Atmosphere, oxidizing, 7 



reducing, 6 

 ATP, 10, 12, 26 

 Australopithecines, 284-287 



333 



