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

When does a mature oocyte complete Meiosis I?

During puberty

At ovulation

At fertilization

At birth

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Verified step by step guidance

Understand the process of oogenesis, which is the development of mature oocytes (egg cells) in females. This process begins before birth and continues until menopause.

Recognize that oogenesis involves two main stages of meiosis: Meiosis I and Meiosis II. These stages are crucial for reducing the chromosome number by half and ensuring genetic diversity.

Learn that during fetal development, primary oocytes begin Meiosis I but are arrested in prophase I until puberty.

At puberty, hormonal changes trigger the continuation of Meiosis I in a select number of primary oocytes during each menstrual cycle.

Identify that Meiosis I is completed just before ovulation, resulting in the formation of a secondary oocyte and a polar body. The secondary oocyte then begins Meiosis II, which is only completed if fertilization occurs.