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Which checkpoint in the cell cycle ensures that DNA is not damaged before replic

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Question: Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)

Options:

  1. G1 checkpoint
  2. G2 checkpoint
  3. M checkpoint
  4. S checkpoint

Correct Answer: G1 checkpoint

Exam Year: 2023

Solution: 

The G1 checkpoint assesses the cell\'s size and DNA integrity before it enters the S phase for replication.

Which checkpoint in the cell cycle ensures that DNA is not damaged before replic

Practice Questions

Q1
Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)
  1. G1 checkpoint
  2. G2 checkpoint
  3. M checkpoint
  4. S checkpoint

Questions & Step-by-Step Solutions

Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)
  • Step 1: Understand that the cell cycle has different phases.
  • Step 2: Identify the G1 phase, which is the first phase of the cell cycle.
  • Step 3: Recognize that the G1 checkpoint occurs at the end of the G1 phase.
  • Step 4: Learn that the G1 checkpoint checks the cell's size and health.
  • Step 5: Know that this checkpoint also checks if the DNA is damaged.
  • Step 6: Understand that if the DNA is not damaged, the cell can move to the S phase for replication.
No concepts available.
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