secondary cultures of normal rat embryo cells were synchronized by a double thymidine block and pulsed with 10 ( -7 ) m 5- [ 3h ] bromodeoxyuridine ( brdurd ) or 10 ( -7 ) m [ 3h ] thymidine during an entire s phase ( 7.5 h ) .
C0007634
cells
C0080129
s phase