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Multiple Choice
Which of the following types of cells typically remain in the G0 phase of the cell cycle and do not re-enter the cell cycle?
A
Intestinal epithelial cells
B
Skin cells
C
Neurons
D
Liver cells
Verified step by step guidance
1
Understand the cell cycle: The cell cycle consists of several phases, including G1, S, G2, and M phases. The G0 phase is a resting state where cells are not actively preparing to divide.
Identify the characteristics of the G0 phase: Cells in the G0 phase have exited the cell cycle and do not proceed to DNA replication or cell division. This phase can be temporary or permanent.
Consider the types of cells: Different cell types have different propensities to enter or remain in the G0 phase. Some cells, like neurons, typically remain in G0 permanently.
Analyze the options: Intestinal epithelial cells and skin cells are known for their rapid turnover and frequent division, so they do not typically remain in G0. Liver cells can enter G0 but can also re-enter the cell cycle if needed.
Conclude with neurons: Neurons are specialized cells that, once fully differentiated, generally remain in the G0 phase and do not re-enter the cell cycle, making them the correct answer.