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What is the main purpose of the G1 checkpoint?
Practice Questions
Q1
What is the main purpose of the G1 checkpoint?
To check DNA integrity
To ensure proper chromosome alignment
To assess cell size and nutrient availability
To initiate DNA replication
Questions & Step-by-Step Solutions
What is the main purpose of the G1 checkpoint?
Steps
Concepts
Step 1: Understand that the G1 checkpoint is a control point in the cell cycle.
Step 2: Know that this checkpoint happens before the cell starts to copy its DNA.
Step 3: Realize that the G1 checkpoint checks if the cell is big enough.
Step 4: Learn that it also checks if there are enough nutrients available for the cell to grow.
Step 5: Understand that if the cell meets these conditions, it can move on to the next phase of the cell cycle.
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