객관식
Which structure is responsible for separating sister chromatids during anaphase of mitosis?
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11. Cell Division
Phases of Mitosis
객관식
The phase of mitosis where chromosomes condense and centrosomes move to opposite poles of the cell is:
A
Prometaphase
B
Metaphase
C
Prophase
D
Anaphase
E
Telophase
검증된 단계별 안내1
Understand the stages of mitosis: Mitosis is divided into several phases: prophase, prometaphase, metaphase, anaphase, and telophase.
Identify the key events in each phase: In prophase, chromosomes condense and become visible, and the mitotic spindle begins to form as centrosomes move to opposite poles of the cell.
Compare the events described in the problem with the characteristics of each mitotic phase: The problem describes chromosomes condensing and centrosomes moving to opposite poles, which are characteristic of prophase.
Eliminate incorrect options: Prometaphase involves the breakdown of the nuclear envelope and attachment of spindle fibers to kinetochores. Metaphase involves chromosomes aligning at the cell's equatorial plane. Anaphase involves the separation of sister chromatids. Telophase involves the reformation of the nuclear envelope around separated chromosomes.
Conclude that the phase described in the problem, where chromosomes condense and centrosomes move to opposite poles, is prophase.
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