Questions and Answers
What is the stage where the cell grows and functions while DNA duplicates?
What occurs during Prophase?
The nuclear membrane breaks down, chromosomes are clearly visible, and the spindle begins to form.
What happens during Metaphase?
Chromosomes are lined up in the center of the cell.
What occurs during Anaphase?
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What is Telophase?
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What is Cytokinesis?
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Study Notes
Interphase
- Phase where the cell grows, performs normal functions, and prepares for division.
- DNA replication occurs, resulting in two identical copies of each chromosome.
- The nucleus remains distinct and clearly visible during this stage.
Prophase
- The nuclear membrane disintegrates, allowing chromosomes to condense and become visible.
- Chromosomes consist of two sister chromatids joined at the centromere.
- Spindle fibers begin to form, originating from centrosomes to facilitate chromosome movement.
Metaphase
- Chromosomes align along the cell's equatorial plane, known as the metaphase plate.
- Each chromosome is attached to spindle fibers from opposite poles, ensuring equal distribution during division.
Anaphase
- Sister chromatids separate at the centromeres, pulling apart toward opposite ends of the cell.
- This separation ensures that each new cell will receive an identical set of chromosomes.
Telophase
- Nuclear membranes reform around each set of separated chromosomes at opposite poles.
- Chromosomes begin to uncoil back into their chromatin form, preparing for the next interphase.
- Signals the end of mitosis and the beginning of cytokinesis.
Cytokinesis
- This process involves the physical division of the cytoplasm, resulting in two distinct daughter cells.
- Occurs after telophase—though not technically a phase of mitosis—as it completes the cellular division process.
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Test your knowledge on the stages of mitosis with these flashcards. Each card features a key term related to mitosis, including definitions for better understanding. Perfect for biology students looking to reinforce their learning about cell division.
