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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0:29 minutes

Problem 7

Textbook Question

Which of the following phases of mitosis is essentially the opposite of prophase in terms of changes within the nucleus?a. telophaseb. metaphasec, interphased. anaphase

Verified step by step guidance

Identify the key events that occur during prophase, such as the condensation of chromatin into chromosomes, the breakdown of the nuclear envelope, and the formation of the mitotic spindle.

Consider the events that would reverse these changes, such as the decondensation of chromosomes back into chromatin, the reformation of the nuclear envelope, and the disassembly of the mitotic spindle.

Recall the sequence of mitosis phases: prophase, metaphase, anaphase, and telophase.

Determine which phase of mitosis involves the reversal of prophase events, focusing on the reformation of the nuclear structures and the decondensation of chromosomes.

Select the phase that is characterized by the re-establishment of the nucleus and the completion of cell division, which is essentially the opposite of prophase.

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Key Concepts

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

Mitosis Phases

Mitosis is a process of cell division that consists of several distinct phases: prophase, metaphase, anaphase, and telophase. Each phase has specific events that lead to the separation of duplicated chromosomes into two daughter cells. Understanding these phases is crucial for identifying their characteristics and functions during cell division.

Prophase

Prophase is the first stage of mitosis, where chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down. The mitotic spindle starts to form, and spindle fibers attach to the centromeres of the chromosomes. This phase sets the stage for the alignment and separation of chromosomes in subsequent phases.

Telophase

Telophase is the final stage of mitosis, characterized by the reformation of the nuclear envelope around each set of separated chromosomes, which begin to de-condense back into chromatin. This phase essentially reverses the changes that occurred during prophase, restoring the nucleus's structure and preparing the cell for cytokinesis, the final division of the cytoplasm.