During which phase of somatic mitotic cell division do sister chromatids separate at the centromere and migrate to opposite cellular poles?
Answer and explanation
Correct answer: A. anaphase
- Step 1: Mitosis stages: Prophase (chromatin condenses), Metaphase (chromosomes align on equatorial plate), Anaphase (centromeres divide, sister chromatids pull apart to opposite poles), Telophase (nuclear envelopes re-form). Answer: anaphase. Why not the others: Metaphase aligns chromosomes; prophase condenses chromatin; telophase forms two nuclei.
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