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Multiple Choice
In the context of eukaryotic cells, what are cells in the G0 phase primarily doing?
A
Performing normal cellular functions without preparing to divide
B
Actively dividing
C
Undergoing apoptosis
D
Undergoing DNA replication
Verified step by step guidance
1
Understand the cell cycle: Eukaryotic cells go through a series of phases known as the cell cycle, which includes G1, S, G2, and M phases. The G0 phase is a distinct state outside of this cycle.
Identify the G0 phase: The G0 phase is a resting state where cells are not actively preparing to divide. Cells can enter this phase from the G1 phase and may remain there for an extended period.
Recognize the activities in G0 phase: Cells in the G0 phase are primarily performing their normal cellular functions, such as metabolism, protein synthesis, and responding to signals, without actively preparing for division.
Differentiate from other phases: Unlike the S phase where DNA replication occurs, or the M phase where cells actively divide, the G0 phase is characterized by the absence of these activities.
Consider examples: Many differentiated cells, such as neurons and muscle cells, spend most of their life in the G0 phase, carrying out specialized functions rather than dividing.