Question
What organelle is responsible for moving the sister chromatids within the cell?
metaphase
anaphase
prophase
telophase and cytokinesis
metaphase
anaphase
prophase
telophase and cytokinesis
Answers
GPT-4o mini
The organelle primarily responsible for moving the sister chromatids within the cell is the **mitotic spindle**, which is composed of microtubules organized by the centrosomes.
In the context of your options:
- **Metaphase**: Sister chromatids are aligned at the metaphase plate.
- **Anaphase**: The mitotic spindle shortens, pulling the sister chromatids apart towards opposite poles of the cell.
- **Prophase**: Chromosomes condense and the mitotic spindle begins to form.
- **Telophase and cytokinesis**: Two new nuclei form, and the cell begins to divide.
From these options, **anaphase** is the stage where the movement of sister chromatids occurs.
In the context of your options:
- **Metaphase**: Sister chromatids are aligned at the metaphase plate.
- **Anaphase**: The mitotic spindle shortens, pulling the sister chromatids apart towards opposite poles of the cell.
- **Prophase**: Chromosomes condense and the mitotic spindle begins to form.
- **Telophase and cytokinesis**: Two new nuclei form, and the cell begins to divide.
From these options, **anaphase** is the stage where the movement of sister chromatids occurs.