Protein and Polynucleotide Turnover 



207 



70 



Glycine 



J.0- 



12 24 36 48 60 72 84 96 108 120 132 144 156 168 



Time in hours 



Fig. 2. 



Figs. 2, 3 and 4. Isotope contents at different stages of regener- 

 ation in rat liver. 



7.0 



tn 



1.0 



Glycine 



•—Adenine Pna cu 

 Ade nine PNA Cy tnpinc^ 



12 24 36 48 60 72 84 96 108 120 132 144 156 168 



Time in hours 



Fig. 3. 



