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

27. The Reproductive System

Meiosis

Anatomy & Physiology

27. The Reproductive System

Meiosis

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Multiple Choice

Does crossing over occur during prophase II of meiosis?

No, crossing over does not occur in prophase II.

Crossing over occurs during anaphase II.

Yes, crossing over occurs again in prophase II.

Crossing over occurs only during metaphase II.

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Verified step by step guidance

Understand the stages of meiosis: Meiosis consists of two rounds of division, meiosis I and meiosis II. Each has its own phases: prophase, metaphase, anaphase, and telophase.

Identify when crossing over occurs: Crossing over is a process where homologous chromosomes exchange genetic material. This typically occurs during prophase I of meiosis, not in meiosis II.

Clarify the role of prophase II: In prophase II, the cell prepares for the second division, but no crossing over occurs because the homologous chromosomes have already been separated in meiosis I.

Differentiate between prophase I and prophase II: Prophase I is characterized by synapsis and crossing over, while prophase II involves the re-condensation of chromosomes without crossing over.

Conclude that crossing over does not occur in prophase II: Based on the understanding of meiosis, crossing over is exclusive to prophase I, and does not happen in prophase II or any other phase of meiosis II.