Multiple Choice
Which of the following is not a part of the cell theory?
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11. Cell Division
Cell Cycle Regulation
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What occurs at the G1 checkpoint in the cell cycle?
A
The cell ensures that DNA replication is complete and accurate.
B
The cell verifies that all chromosomes are attached to the spindle apparatus.
C
The cell checks for DNA damage and ensures sufficient resources for DNA replication.
D
The cell checks for proper chromosome alignment before cytokinesis.
Verified step by step guidance1
Understand the role of the G1 checkpoint in the cell cycle. The G1 checkpoint is crucial for assessing the cell's readiness to proceed to DNA synthesis (S phase).
Identify the key functions of the G1 checkpoint. It primarily checks for DNA damage and ensures that the cell has sufficient resources, such as nucleotides and energy, for DNA replication.
Differentiate the G1 checkpoint from other checkpoints. Unlike the G2 checkpoint, which checks for DNA replication completion, the G1 checkpoint focuses on the cell's overall condition and readiness to replicate DNA.
Recognize the importance of the G1 checkpoint in preventing errors. By ensuring DNA integrity and resource availability, the G1 checkpoint helps prevent mutations and ensures successful cell division.
Connect the G1 checkpoint to broader cell cycle regulation. It is part of a series of checkpoints that maintain genomic stability and regulate cell proliferation, ensuring healthy cell function.
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