by using ( a ) bromodeoxyuridine quenching of hoechst 33342 fluorescence and ( b ) the drug icrf-159 , a selective g2 - m-blocking agent , we show that dado causes a g1 block in cultured t leukemic cells and that cells in the s phase exposed to dado are able to complete that s phase , pass through g2 + m , and return to the g1 phase .
C1517342
g1 block
C0079395
g1 phase