Multiple Choice
In the context of the G1 phase checkpoint and cell-cycle control, what type of cell is most likely to exit G1 and enter the G0 phase (a quiescent, non-dividing state)?
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16. Cell Division
G1 Phase
Multiple Choice
During the G1 and G2 phases of the eukaryotic cell cycle, what is the cell primarily doing?
A
Separating sister chromatids and dividing the nucleus
B
Replicating its DNA to produce identical sister chromatids
C
Growing and carrying out normal metabolism while synthesizing proteins and organelles to prepare for DNA replication (G1) and mitosis (G2)
D
Immediately entering meiosis to produce haploid daughter cells
Verified step by step guidance1
Understand the phases of the eukaryotic cell cycle: G1, S, G2, and M phases.
Recognize that during the G1 phase, the cell is primarily growing, carrying out normal metabolic activities, and synthesizing proteins and organelles to prepare for DNA replication.
Know that the S phase is when DNA replication occurs, producing identical sister chromatids.
Identify that during the G2 phase, the cell continues to grow and produce proteins and organelles, preparing for mitosis but not yet dividing.
Conclude that the main activities during G1 and G2 phases are growth and preparation for the next steps in the cell cycle, rather than DNA replication or nuclear division.
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