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Question

Cell in the G0 phase does the following?


A

exits the cell cycle

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B

enters the cell cycle

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C

suspends the cell cycle

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D

terminates the cell cycle

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Solution

The correct option is A

exits the cell cycle


The correct option is A.

Explanation of the correct option:

  1. The cell cycle is divided into two major phases- Interphase and M-phase.
  2. A cell remains in the interphase for 95% of the cell cycle.
  3. The interphase is divided into 4 phases - G0 , G1, S, and G2 phase and each phase has its own significance.
  4. The cell exit the cell cycle in the G0 phase and enter the dormant phase where the growth and dividing processes of the cell are prohibited.
  5. Neural cells and cardiac cells exit the cell cycle and enter the inactive G0 phase.

Explanation of the incorrect options:

Option B:

  1. The cell exit the cell cycle in the G0 phase and it enters the cell cycle in the G1 phase.
  2. Therefore, this option is incorrect.

Option C:

  1. The cells only in certain conditions suspend the cell cycle but not in the G0 phase.
  2. Therefore, this option is incorrect.

Option D:

  1. The cells do not terminate the cell cycle in the G0 phase.
  2. Therefore, this option is incorrect.

Final answer: Cell in the G0 phase exits the cell cycle.


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