Which is not true for anaphase

Options

A. Chromosomes move to opposite poles
B. Spindle poles move apart
C. Golgi bodies and E.R. are reformed
D. Centromeres split and chromatids separate

Answer

To determine which statement is not true for anaphase, let's analyze each option step by step:

1. **Chromosomes move to opposite poles**:
- During anaphase, sister chromatids are pulled apart and move towards opposite poles of the cell. This is a fundamental characteristic of anaphase in both mitosis and meiosis.
- **Conclusion**: This statement is true.

2. **Spindle poles move apart**:
- In anaphase, the spindle fibers shorten, which helps pull the chromatids apart. Additionally, the spindle poles do move apart to help facilitate this separation.
- **Conclusion**: This statement is true.

3. **Golgi bodies and endoplasmic reticulum are reformed**:
- The reformation of Golgi bodies and the endoplasmic reticulum occurs during telophase, not during anaphase. Anaphase is primarily focused on the separation of chromatids.
- **Conclusion**: This statement is not true for anaphase.

4. **Centromeres split and chromatids separate**:
- During anaphase, the centromeres that hold the sister chromatids together do split, allowing the chromatids to separate and move towards opposite poles.
- **Conclusion**: This statement is true.

Based on the analysis, the statement that is not true for anaphase is: **"Golgi bodies and endoplasmic reticulum are reformed."**