Multiple Choice
In an overview of the eukaryotic cell cycle, what is the time between cell divisions called?
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16. Cell Division
Overview of the Cell Cycle
Multiple Choice
In an overview of the eukaryotic cell cycle, which statement best describes the G0 phase?
A
A stage of mitosis in which chromosomes align at the metaphase plate before separation
B
A quiescent state in which cells have exited the active cell cycle and are not preparing to divide, though some can re-enter in response to signals
C
The phase in which DNA is replicated to produce sister chromatids prior to mitosis
D
A checkpoint phase occurring after DNA synthesis in which cells complete cytokinesis and immediately begin DNA replication again
Verified step by step guidance1
Understand that the eukaryotic cell cycle consists of several phases: G1 (gap 1), S (synthesis), G2 (gap 2), and M (mitosis). Each phase has distinct cellular activities.
Recognize that the G0 phase is a specialized state where cells exit the active cycle and do not proceed to divide. This phase is often called a quiescent or resting state.
Note that cells in G0 are metabolically active but have paused progression through the cell cycle, meaning they are not preparing for DNA replication or mitosis.
Understand that some cells in G0 can re-enter the cell cycle in response to specific external signals, such as growth factors or injury, while others remain permanently in G0.
Compare the G0 phase to other phases: it is not part of mitosis (where chromosomes align or separate), nor is it the phase where DNA replication occurs (S phase), nor a checkpoint phase immediately after DNA synthesis.
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