the measurement of thymidine incorporation rates into dna , of labeling and mitotic indices , and of flow cytometry revealed ( a ) an inhibition of cells in g1 shortly prior to their entering s phase , ( b ) a reduced rate of dna synthesis and a delayed passage of cells through s phase which were in this phase on addition of tpa , ( c ) a delayed passage through g2 of a portion of cells which were somewhere in the first half of the s phase on addition of tpa , and ( d ) an instant but short-lasting blockage in g2 immediately before mitosis .
C0007634
cells
C0080129
somewhere