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 event occurs during prophase of mitosis?

Sister chromatids are pulled apart.

Chromosomes condense and become visible.

The nuclear envelope re-forms around chromosomes.

Chromosomes align at the cell's equator.

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Verified step by step guidance

Understand the stages of mitosis: Mitosis is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has distinct events that occur.

Focus on prophase: During prophase, the chromatin fibers condense into discrete chromosomes that are visible under a microscope. This is a key characteristic of prophase.

Identify the key events of prophase: In addition to chromosome condensation, the mitotic spindle begins to form, and the nucleolus disappears. The nuclear envelope starts to break down, but it does not re-form until telophase.

Differentiate from other stages: Sister chromatids are pulled apart during anaphase, the nuclear envelope re-forms during telophase, and chromosomes align at the cell's equator during metaphase.

Conclude with the correct event: Based on the characteristics of prophase, the correct event that occurs during this stage is the condensation and visibility of chromosomes.