Multiple Choice
During which three phases of the cell cycle are individual chromosomes no longer visible under a light microscope?
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16. Cell Division
Overview of the Cell Cycle
Multiple Choice
Both mitosis and meiosis are preceded by which phase of the cell cycle during which DNA is replicated?
A
G2 phase of interphase
B
Cytokinesis
C
S phase of interphase
D
G1 phase of interphase
Verified step by step guidance1
Understand the phases of the cell cycle: The cell cycle consists of interphase (which includes G1, S, and G2 phases) followed by mitosis and cytokinesis.
Recall the function of each interphase phase: G1 phase involves cell growth, S phase involves DNA replication, and G2 phase involves preparation for mitosis.
Identify which phase is responsible for DNA replication: DNA synthesis occurs specifically during the S phase of interphase.
Recognize that both mitosis and meiosis require DNA replication beforehand to ensure each daughter cell receives the correct genetic material.
Conclude that the phase preceding both mitosis and meiosis, during which DNA is replicated, is the S phase of interphase.
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