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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Problem 6

Textbook Question

Which of the following does not occur during mitosis?a. condensation of the chromosomesb. replication of the DNAc. separation of sister chromatidsd. spindle formation

Verified step by step guidance

Step 1: Understand the process of mitosis. Mitosis is a part of the cell cycle where replicated chromosomes are separated into two new nuclei. This results in two identical daughter cells, each containing the same number of chromosomes as the parent cell.

Step 2: Review each of the options in the context of the mitosis process. Option a) condensation of the chromosomes, this happens during prophase, the first stage of mitosis. Option c) separation of sister chromatids, this occurs during anaphase, a later stage of mitosis. Option d) spindle formation, this also happens during prophase.

Step 3: Consider option b) replication of the DNA. DNA replication is a crucial part of cell division, but it does not occur during mitosis. Instead, it happens during the S phase of the cell cycle, which is part of interphase, before mitosis begins.

Step 4: Therefore, the correct answer is option b) replication of the DNA, as this does not occur during mitosis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mitosis

Mitosis is the process of cell division that results in two genetically identical daughter cells from a single parent cell. It consists of several stages: prophase, metaphase, anaphase, and telophase, during which the chromosomes are condensed, aligned, separated, and finally divided into two new nuclei.

Chromosome Condensation

Chromosome condensation is a critical process that occurs during prophase of mitosis, where the chromatin fibers become tightly packed into distinct chromosomes. This condensation is essential for the chromosomes to be moved efficiently during cell division, preventing entanglement and ensuring accurate segregation.

DNA Replication

DNA replication is the process of copying the entire DNA molecule before cell division, which occurs during the S phase of the cell cycle, not during mitosis itself. This ensures that each daughter cell receives an identical set of chromosomes, but it is not a part of the mitotic process.