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1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Phases of Mitosis

Anatomy & Physiology

3. Energy & Cell Processes

Phases of Mitosis

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Multiple Choice

During which of the following phases do centromeres divide?

Telophase

Prophase

Metaphase

Anaphase

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Verified step by step guidance

Understand the process of mitosis, which is the division of a cell nucleus into two genetically identical nuclei. Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.

Recall that during prophase, the chromosomes condense and become visible, but centromeres do not divide at this stage.

In metaphase, chromosomes align at the cell's equatorial plane, but centromeres remain intact, holding sister chromatids together.

During anaphase, the centromeres divide, allowing sister chromatids to separate and move toward opposite poles of the cell. This is the key event that distinguishes anaphase from other phases.

Finally, in telophase, the separated chromatids reach the poles, and the nuclear envelope reforms around each set of chromosomes, but centromeres have already divided in the previous phase, anaphase.