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Questions and Answers
What is the stage where the cell grows and functions, and the DNA duplicates?
What is the stage where the cell grows and functions, and the DNA duplicates?
- Metaphase
- Interphase (correct)
- Prophase
- Anaphase
What happens during Prophase?
What happens during Prophase?
The nuclear membrane breaks down, chromosomes are clearly visible, and the spindle begins to form.
What occurs during Metaphase?
What occurs during Metaphase?
Chromosomes are lined up in the center of the cell.
What is the definition of Anaphase?
What is the definition of Anaphase?
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What happens during Telophase?
What happens during Telophase?
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What is Cytokinesis?
What is Cytokinesis?
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Study Notes
Interphase
- The cell undergoes growth and normal functions.
- DNA replication occurs, ensuring each daughter cell gets identical genetic information.
- The nucleus remains clearly visible, indicating active cellular processes.
Prophase
- The nuclear membrane disintegrates, allowing access to the chromosomes.
- Chromosomes condense and become distinctly visible under a microscope.
- Formation of the spindle apparatus begins, which is crucial for chromosome movement.
Metaphase
- Chromosomes align in the cell equator, known as the metaphase plate.
- This alignment ensures that each sister chromatid will be equally distributed to each daughter cell.
Anaphase
- Sister chromatids separate and move toward opposite poles of the cell.
- This movement is facilitated by the spindle fibers, ensuring proper segregation of chromosomes.
Telophase
- Nuclear membranes reform around each set of separated chromosomes, creating two distinct nuclei.
- Chromosomes begin to uncoil, reverting to a less condensed chromatin state.
Cytokinesis
- This process occurs alongside Telophase and involves the division of the cytoplasm.
- Not considered a phase of mitosis, but essential for the complete separation of daughter cells.
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