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

What is the main difference between oogenesis and spermatogenesis in terms of meiosis?

Oogenesis occurs continuously throughout life, whereas spermatogenesis occurs only during certain periods.

Oogenesis results in one viable ovum and polar bodies, while spermatogenesis produces four viable sperm cells.

Oogenesis involves two rounds of meiosis, while spermatogenesis involves only one.

Oogenesis produces gametes with double the chromosome number compared to spermatogenesis.

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Verified step by step guidance

Understand that both oogenesis and spermatogenesis are processes of gametogenesis, which involve the formation of gametes through meiosis.

Recognize that meiosis is a type of cell division that reduces the chromosome number by half, resulting in haploid cells. Both oogenesis and spermatogenesis involve two rounds of meiotic division: Meiosis I and Meiosis II.

In oogenesis, the process results in one viable ovum and three polar bodies. This is because the cytoplasm is unevenly divided during cytokinesis, with most of it going to one cell (the ovum) to ensure it has enough resources for early development.

In contrast, spermatogenesis results in four viable sperm cells. The cytoplasm is divided more equally among the four resulting cells, as sperm cells are smaller and require less cytoplasm.

Summarize the main difference: Oogenesis results in one viable ovum and polar bodies due to unequal cytoplasmic division, while spermatogenesis produces four viable sperm cells with equal division of cytoplasm.