Fig, 6-20 Mitosis in the yeast cell. (a) Twelve chromo- 

 somes attached to the wall of the nuclear vacuole. (b) The 

 chromosomes pairing up, still attached to the wall of the vacuole, 

 (c) Six pairs of chromosomes free in the nuclear sap. (d) Aggre- 

 gation of the six pairs into a complex. (e) A fully formed nu- 

 clear complex, (f) Longitudinal split producing two complexes, 

 (g) Two separated complexes following the longitudinal split, 

 (h) Chromosomes from one complex passing into the bud vacuole. 



6-26 



