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

Anatomy of the Male Reproductive System

Anatomy & Physiology

27. The Reproductive System

Anatomy of the Male Reproductive System

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Multiple Choice

During anaphase I, what structures separate and move to opposite poles of the cell?

sister chromatids

nucleoli

tetrads

nonhomologous chromosomes

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Verified step by step guidance

Understand the context of the problem: Anaphase I is a stage in meiosis, a type of cell division that reduces the chromosome number by half and results in the production of gametes or spores.

Recall the key events of Anaphase I: During this phase, homologous chromosomes, which are paired as tetrads, are separated and move to opposite poles of the cell.

Differentiate between the terms: Tetrads consist of two homologous chromosomes, each made up of two sister chromatids. In Anaphase I, it is the homologous chromosomes (tetrads) that are separated, not the sister chromatids.

Clarify the role of spindle fibers: Spindle fibers attach to the centromeres of the homologous chromosomes and help pull them apart to opposite poles.

Conclude with the correct identification: The structures that separate and move to opposite poles during Anaphase I are the tetrads, which consist of homologous chromosomes.