Which of the following types of cells typically enter the G0 phase when they are mature?

• A. Skeletal muscle cells
• B. Liver cells
• C. Neurons
• D. Epithelial cells

Answer: (C)

Verified step by step guidance

1. Understand the cell cycle: The cell cycle consists of several phases, including G1, S, G2, and M. The G0 phase is a resting phase where cells exit the cycle and do not actively divide.
2. Identify the types of cells that typically enter the G0 phase: Cells that are highly specialized and do not frequently divide often enter the G0 phase.
3. Consider skeletal muscle cells: These cells are highly specialized and do not typically divide after maturation, thus they enter the G0 phase.
4. Consider neurons: Neurons are also highly specialized and generally do not divide after reaching maturity, so they enter the G0 phase.
5. Contrast with liver and epithelial cells: Liver cells can re-enter the cell cycle to regenerate tissue, and epithelial cells frequently divide to replace lost or damaged cells, so they do not typically remain in the G0 phase.