298 



VERA DAXCHAKOFF 



ft. Jtn 



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z. ^ 



rnj 







Vera Danchakoff 



Text fig. 1. Scheme of cell differentiation and multiplication by equal division 

 gives as result a range of differentiated cells. 





\j %^ m, w.,, 



-' / 



/ 



/.U. 



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Vera Dancliakoff 



Text tig. 1. Sclieme of cell differentiation and multiplication by unequal division 

 gives as result a range of differentiated cells, a number of stem cells and intermediate 

 stages of differentiation. 



