객관식
Which statement best explains how the cell cycle is important to the life cycle of the frog?
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11. Cell Division
Introduction to the Cell Cycle
객관식
During which stage of the cell cycle do chromosomes replicate to form identical copies of themselves?
A
G2 phase
B
G1 phase
C
M phase
D
S phase
검증된 단계별 안내1
Understand the cell cycle: The cell cycle consists of several stages, including G1, S, G2, and M phases. Each phase has a specific role in cell growth and division.
Focus on the S phase: The S phase, or synthesis phase, is the stage where DNA replication occurs. During this phase, chromosomes replicate to form identical copies of themselves, ensuring that each daughter cell receives a complete set of genetic material.
Clarify the role of other phases: The G1 phase is primarily for cell growth and preparation for DNA replication. The G2 phase involves preparation for mitosis, including protein synthesis and organelle replication. The M phase is where mitosis and cytokinesis occur, dividing the cell into two daughter cells.
Identify the correct answer: Since DNA replication occurs during the S phase, this is the correct answer to the question.
Review the importance of DNA replication: DNA replication ensures genetic continuity, allowing cells to pass identical genetic information to their daughter cells during cell division.
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