6. If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will
(A) move directly into telophase.
(B) exit the cycle and switch to a nondividing state.
(C) complete the cycle and divide.
(D) complete cytokinesis and form new cell walls.
(E) show a drop in maturation-promoting factor (MPF) concentration.

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統計： A(4), B(3), C(41), D(1), E(2) #2241845