the mean percentages of the incorporation due to atp-independent synthesis in nuclei from normal untreated cells , 5-fluorouracil-treated , cytosine arabinoside treated and vitamin b-12- or folate-deficient cells were 56 +/- 7 % s.e. , 41 +/- 7 % , 84 +/- 3 % and 28 +/- 6 % , respectively .
C0007610
nuclei
C0007634
cells