Multiple Choice
Which of the following correctly describes the S-phase of the cell cycle?
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11. Cell Division
Introduction to the Cell Cycle
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What is the correct order of the phases in the cell cycle?
A
G1, S, G2, M
B
G2, M, G1, S
C
M, G1, S, G2
D
S, G1, M, G2
Verified step by step guidance1
Understand that the cell cycle is a series of phases that a cell goes through to divide and produce new cells. It consists of interphase and the mitotic phase.
Interphase is divided into three phases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2). During G1, the cell grows and performs its normal functions. In the S phase, DNA replication occurs. In G2, the cell prepares for mitosis.
The mitotic phase (M phase) follows interphase and includes mitosis and cytokinesis, where the cell divides into two daughter cells.
The correct order of the phases in the cell cycle is G1, S, G2, and M. This sequence ensures that the cell grows, duplicates its DNA, prepares for division, and finally divides.
Review the options provided and identify the sequence that matches the correct order: G1, S, G2, M.
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