Behavior and fine structure of spindle fibers during mitosis in endosperm Andrew Bajer OriginalPaper Pages: 249 - 281
On the triggering of mitosis and the division cycle of polynucleate cells G. Giménez-MartínJ. F. López-SáezA. González-Fernández OriginalPaper Pages: 282 - 296
Evidence for the association of homologous chromosomes during premeiotic stages inImpatiens andSalvia K. P. S. ChauhanW. O. Abel OriginalPaper Pages: 297 - 302
Persistent heterochromatic association inMetrioptera brachyptera David I. Southern OriginalPaper Pages: 303 - 318
Parallel polymorphism for supernumerary segments inChorthippus parallelus (zetterstedt) G. M. HewittB. John OriginalPaper Pages: 319 - 342
Extra Replications in the “DNA-puffs” ofSciara coprophila Helen V. CrouseH. -G. Keyl OriginalPaper Pages: 357 - 364
Die Speicheldrüsenchromosomen der StechmückeCulex pipiens Leonore Dennhöfer OriginalPaper Pages: 365 - 376