Cell Cycle Checkpoint: Error Detected in Copied DNA
Which checkpoint in the cell cycle is the cell at if one segment of its copied DNA contains an error?
OA. G₁ checkpoint
OB. G₂ checkpoint
OC. Go checkpoint
OD. M checkpoint
Answer:
The cell is at the G₁ checkpoint in the cell cycle because it has detected an error in one segment of its copied DNA.
The cell is at the G₁ checkpoint in the cell cycle. This checkpoint ensures that the cell has grown and reached the appropriate size before progressing to the next stage. At the G₁ checkpoint, the cell checks for any errors or damage in the DNA, and if there are any, it can pause the cell cycle to repair the errors before continuing.
It is crucial for the cell to repair any errors or damage in its DNA before proceeding to avoid passing on mutations to daughter cells. This checkpoint plays a vital role in maintaining the integrity of the cell's genetic material.
Remember:Understanding the checkpoints in the cell cycle is essential for ensuring proper cell division and preventing the proliferation of damaged or mutated cells.