Centromeres divide and sister chromatids become full-fledged chromosomes during which phase of mitosis?

• A. Telophase
• B. Metaphase
• C. Anaphase
• D. Prophase

Answer: (C)

Verified step by step guidance

1. Recall the stages of mitosis: Prophase, Metaphase, Anaphase, and Telophase.
2. Understand that during Prophase, chromosomes condense and the mitotic spindle begins to form.
3. During Metaphase, chromosomes align at the metaphase plate, but sister chromatids are still joined at the centromere.
4. In Anaphase, the centromeres divide, allowing sister chromatids to separate and become individual chromosomes that move toward opposite poles.
5. Finally, in Telophase, the chromosomes reach the poles and begin to decondense as the nuclear envelope reforms.