Multiple Choice
During which phase of mitosis do the sister chromatids separate and move toward opposite poles of the cell?
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11. Cell Division
Phases of Mitosis
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During telophase of mitosis, what happens to the chromosomes?
A
They de-condense and are enclosed by a nuclear envelope.
B
They are pulled apart to opposite poles of the cell.
C
They align at the cell's equator.
D
They condense and become visible.
Verified step by step guidance1
Understand the context of telophase in mitosis: Telophase is the final stage of mitosis, where the cell is preparing to complete division.
Recall the events leading up to telophase: During earlier stages of mitosis, chromosomes have been condensed and aligned at the cell's equator, and then pulled apart to opposite poles during anaphase.
Identify the key processes in telophase: Chromosomes begin to de-condense, meaning they return to a less tightly packed form, which is typical of interphase.
Recognize the formation of the nuclear envelope: During telophase, a new nuclear envelope forms around each set of de-condensed chromosomes, effectively creating two separate nuclei within the cell.
Conclude the process: The de-condensation of chromosomes and the formation of the nuclear envelope are crucial for the transition from mitosis to cytokinesis, where the cell will finally split into two daughter cells.
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