Multiple Choice
Which of the following pairs of processes encompasses the entire eukaryotic cell cycle?
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11. Cell Division
Introduction to the Cell Cycle
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Which phase of the cell cycle occurs first?
A
G2 phase
B
G1 phase
C
M phase
D
S phase
Verified step by step guidance1
Understand the cell cycle: The cell cycle is a series of phases that a cell goes through to grow and divide. It consists of interphase (G1, S, and G2 phases) and the mitotic phase (M phase).
Identify the phases of interphase: Interphase is the period of the cell cycle during which the cell is not dividing. It includes three phases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2).
Determine the sequence of interphase: The sequence of interphase is G1 phase, followed by S phase, and then G2 phase.
Recognize the role of each phase: G1 phase is where the cell grows and carries out normal functions. S phase is where DNA replication occurs. G2 phase is where the cell prepares for mitosis.
Conclude which phase occurs first: Since G1 phase is the first phase of interphase, it is the first phase of the cell cycle.
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