객관식
During metaphase of mitosis, how many sister chromatids are present in a human somatic cell?
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9. Mitosis and Meiosis
Mitosis
Multiple Choice
During the cell cycle associated with mitosis, in which phase is DNA replicated?
A
Telophase
B
S phase of interphase
C
Metaphase
D
Prophase
검증된 단계별 안내1
Understand the phases of the cell cycle: The cell cycle consists of interphase (G1, S, G2 phases) and the mitotic phase (mitosis and cytokinesis).
Recall that DNA replication occurs before mitosis to ensure each daughter cell receives an identical set of chromosomes.
Identify that DNA replication specifically happens during the S phase (Synthesis phase) of interphase, where the cell synthesizes a complete copy of its DNA.
Recognize that the mitotic phases (prophase, metaphase, anaphase, telophase) involve chromosome condensation, alignment, separation, and cell division, but not DNA replication.
Conclude that the correct phase for DNA replication is the S phase of interphase, not any of the mitotic phases like prophase, metaphase, or telophase.
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