654 



INDEX 



CYi\ASMK—{contd.). 

 frequency, 99, 129, 398 



of fragments, 144, 146 



in hybrids, 138, 400 



of polyploids, 218 et sqq. 



statistics, 169, 290, 294 



after X-raying, 429 

 imperfect, 495 



interchange heterozygote, 151 

 interstitial, 105, 131, 495 



in sex chromosomes, 366 

 lateral, 142, 148, 261, 262, 504, 



558 

 localisation, 99 et sqq., no, 289, 



391 

 at mitosis, 397 



movement, see terminalisation, 

 multiple, 142, 350 

 origin, 550 



in polyploids, 120 et sqq. 

 position, 147, no 

 pseudo-, 421, 426, 433, 527, XII 

 random, no 

 reciprocal, 268, 499 

 terminal, 105, no, 170, 495, 504, 



517 



theory of pairing, see theory. 

 See also terminalisation, 

 crossing-over. 

 CHIASMATYPE THEORY, see 



theory. 

 Chilodon, 21 

 CHIMERA, 71, 443 

 Chironomus, 175 et sqq., 178, VII 

 Chlamydophrys, 21 

 Chlorophycese, 6 

 chloroplasts, 221 

 Chondrilla, 438 

 Chorthippus, 91, 95, III, IX, XI 



inversion, 265 



mitosis, 53 



non-pairing, 402 



relational coiling, 260 



See also Stenohothrus. 

 CHROMATID, 23 



acentric, 420 et sqq., 487, 524 



breakage, 425 et sqq. 



bridge, see dicentric. 



coiling, see coiling. 



dicentric, 268, 420 et sqq., IX, XII 



at diplotene, 549 et sqq. 



interference, see interference. 



interlocking, 116 



at meiosis, 100 et sqq., 114 

 anaphase, 130 



CHROMATID— (coM/^.) . 



non-disjunction, see 

 non-disjunction. 



ring, IX, XII 



segregation, 285 et sqq. 



sister, 117 



See also crossing-over. 

 CHROMATIN, 570 



diminution, 329 



nucleoli, 22, 311 

 CHROMOCENTRE, 45 

 CHROMOMERE, 24, 87, 423, 566 



salivarv gland, 177, VII 

 CHROMOSOME, 22, 23 



acentric, 71, 424 et sqq., 541, 554 



aggregation, 57, 59 



arm, 35 



branched, 74, 424, 554 



breakage, 425 et sqq., 547 et sqq. 



clonal, 478 



coiling, see coiling. 



complement, 40 



compound, 364 



constants, 52 



dicentric, 71, 424 et sqq., 554, 

 IX, XII 



differential condensation, 307 et 

 sqq. 



diminution, 57, 431 



direction of split, 75 



distribution, 524 



division of, 47, 425, 486, 501 et 



sqq., 549 

 elimination of, 429 

 individuality, 40 et sqq., 60 

 inert, 63, 329 et sqq., 560 



sex chromosomes, 177, 370 et 

 sqq., 391 

 length, 56 

 linear differentiation, 25, 42, 245, 



332 

 natural types, 37 

 nucleolar, 40 

 number, 60 et sqq., 220 

 polycentric, 537, 554 

 qualitative differentiation, 167, 



316 

 reunion, 557 et sqq. 

 rigidity, 521, 530 

 ring, see ring chromosome, 

 semi-mitotic, 408 

 set, 60, 207 

 size, 55, 78 et sqq., 112, 566 



genotypic control of, 399 



mutation, 54 



