Multiple Choice
Which of the following correctly lists the stages of the cell cycle in order?
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16. Cell Division
Overview of the Cell Cycle
Multiple Choice
In an overview of the cell cycle, what best describes the G 0 phase?
A
A quiescent state in which a cell has exited the cell cycle and is not actively preparing to divide, though it may re-enter the cycle under appropriate signals
B
The mitotic phase in which the nucleus divides and chromosomes segregate (M phase)
C
The phase in which DNA is replicated to produce sister chromatids (S phase)
D
A checkpoint within G 2 where the cell verifies complete DNA replication before mitosis
Verified step by step guidance1
Understand that the cell cycle consists of several phases: G1, S, G2, and M, with G0 being a distinct phase outside the active cycle.
Recognize that the G0 phase is a quiescent or resting state where cells have exited the cycle and are not actively preparing to divide.
Note that cells in G0 can remain metabolically active but do not progress toward DNA replication or mitosis unless stimulated by specific signals.
Differentiate G0 from other phases: M phase involves mitosis (nuclear division), S phase involves DNA replication, and G2 includes a checkpoint verifying DNA replication completeness.
Conclude that the best description of G0 is a reversible resting state outside the active cell cycle, distinct from phases directly involved in cell division.
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