Table of contents

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

Which of the following events characterizes the beginning of anaphase?

Chromosomes align at the metaphase plate

Sister chromatids separate and move toward opposite poles

The mitotic spindle begins to form

The nuclear envelope re-forms around each set of chromosomes

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Verified step by step guidance

Understand the context of the cell cycle: Anaphase is a stage in mitosis, which is the process of cell division that results in two daughter cells.

Recall the sequence of mitosis stages: Prophase, Metaphase, Anaphase, and Telophase. Each stage has distinct events.

Identify the key event of anaphase: During anaphase, the sister chromatids, which are identical copies of a chromosome, separate and move toward opposite poles of the cell.

Differentiate anaphase from other stages: In metaphase, chromosomes align at the metaphase plate. In telophase, the nuclear envelope re-forms around each set of chromosomes. The mitotic spindle begins to form during prophase.

Conclude that the separation of sister chromatids is the defining event of anaphase, marking its beginning.