Fig. 6-4 Alkali-toluidine 

 Blue Stain. In many cells the 

 "net-knots" of heterochromatin 

 can be seen. Some cells con- 

 tain more than 20. In some 

 cells these have condensed to 

 2. In other intermediate cells 

 the coiling has progressed to 

 a point where the number of 

 knots is reduced but complete 

 coiling into two bodies has 

 not yet been achieved. 



6-9 



