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Multiple Choice
Which of the following events occurs during the G2 phase of the cell cycle?
A
Cytokinesis
B
Cell growth and preparation for mitosis
C
Chromosome alignment at the metaphase plate
D
DNA replication
Verified step by step guidance
1
Understand the cell cycle phases: The cell cycle consists of interphase (G1, S, and G2 phases) and the mitotic phase (mitosis and cytokinesis).
Identify the G2 phase: The G2 phase is the second gap phase following DNA synthesis (S phase) and before mitosis (M phase).
Recognize the purpose of the G2 phase: During the G2 phase, the cell continues to grow and produces proteins and organelles. It also checks for DNA damage and ensures all DNA is replicated correctly.
Differentiate between the events: Cytokinesis is the division of the cytoplasm, occurring after mitosis. Chromosome alignment at the metaphase plate happens during metaphase of mitosis. DNA replication occurs during the S phase.
Conclude the correct event for G2: The G2 phase involves cell growth and preparation for mitosis, ensuring the cell is ready to enter the mitotic phase.