CYTOLOGY 



CHAP. 



C. MITOSIS 



The essential feature of mitosis is the rearrangement of the chromatin 

 and linin to form a number of separate, thread-shaped bodies, the chromo- 



/■ 





X 



B 



/ 



^mn 









Fig. 2. 



H 



Diagram of Mitosis. The nucleus contains six chromosomes. A, resting nucleus ; B, early prophase, 

 individual chromosomes not yet distinguishable, centrosome dividing ; C, middle prophase, appearance of 

 spindle figure ; D, late prophase. The nuclear membrane has disappeared and the chromosomes are becoming 

 attached to the spindle fibres. E, metaphase ; F, anaphase ; G, telophase ; H, nuclear and cell division 

 complete, and daughter nuclei reconstituted. 



