Multiple Choice
In the cell cycle, which process must occur before mitosis or meiosis can take place?
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16. Cell Division
DNA Replication
Multiple Choice
In which phase of the cell cycle is DNA replicated (duplicated) prior to mitosis?
A
S phase of interphase
B
Telophase
C
Prophase
D
Metaphase
Verified step by step guidance1
Understand the overall structure of the cell cycle, which consists of interphase and mitotic phase (M phase). Interphase includes G1, S, and G2 phases, while mitosis includes prophase, metaphase, anaphase, and telophase.
Recall that DNA replication (duplication) must occur before a cell divides to ensure each daughter cell receives an identical set of chromosomes.
Identify that DNA replication happens during the S phase (Synthesis phase) of interphase, where the cell synthesizes a complete copy of its DNA.
Recognize that the phases listed in the problem (telophase, prophase, metaphase) are all stages of mitosis, which occur after DNA replication is complete.
Conclude that the correct phase for DNA replication prior to mitosis is the S phase of interphase.
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