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

To which part of the centromere do mitotic spindle fibers attach during prometaphase?

Centrosome

Kinetochore

Chromatid

Telomere

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Verified step by step guidance

Understand the context of the problem: During cell division, specifically mitosis, the mitotic spindle fibers play a crucial role in separating chromosomes into daughter cells.

Identify the key components involved: The centromere is the region of a chromosome where the two sister chromatids are joined. The kinetochore is a protein structure on the centromere that serves as the attachment site for spindle fibers.

Clarify the function of the kinetochore: During prometaphase, the spindle fibers attach to the kinetochores, which are located on the centromeres of the chromosomes. This attachment is essential for the movement and alignment of chromosomes during mitosis.

Differentiate between the terms: The centrosome is the microtubule-organizing center, not the attachment site for spindle fibers on chromosomes. Chromatids are the individual strands of a chromosome, and telomeres are the ends of chromosomes, neither of which are involved in spindle fiber attachment.

Conclude with the correct answer: The mitotic spindle fibers attach to the kinetochore during prometaphase, facilitating the proper segregation of chromosomes.