the task was approached methodically by : a ) determination in vitro of the number of cells ( 66 cultures ) , b ) morphological analysis of the mitotic activity in vitro ( 270 cultures ) , c ) measurements in vitro with 3h-thymidine of the dna synthesis using liquid scintillation counts ( more than 3000 cultures ) , d ) measurements in vitro with 3h-thymidine of the dna synthesis using autoradiography ( 66 cultures ) , e ) determination in vivo of the dna synthesis by means of the incorporation of 131i-desoxyuridine into the mouse spleen ( investigation with 100 mice ) .
C0012854
dna
C0598312
dna synthesis