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Questions and Answers
What is the primary function of mitosis in a cell?
What is the primary function of mitosis in a cell?
What happens to the chromosomes during the first phase of mitosis?
What happens to the chromosomes during the first phase of mitosis?
What is the role of the centromere in mitosis?
What is the role of the centromere in mitosis?
What is the end result of cytokinesis?
What is the end result of cytokinesis?
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What is the term for the process of a cell growing and replicating its DNA?
What is the term for the process of a cell growing and replicating its DNA?
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What is the term for the diffuse, unfolded state of chromosomes?
What is the term for the diffuse, unfolded state of chromosomes?
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What is the result of DNA replication during interphase?
What is the result of DNA replication during interphase?
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What is the primary difference between a chromosome and a sister chromatid?
What is the primary difference between a chromosome and a sister chromatid?
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During prophase, what is the primary function of the centrosomes?
During prophase, what is the primary function of the centrosomes?
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What is the stage of mitosis where the nuclear envelope disappears?
What is the stage of mitosis where the nuclear envelope disappears?
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What connects sister chromatids?
What connects sister chromatids?
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What is the main function of centrioles?
What is the main function of centrioles?
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During prophase, what happens to the DNA?
During prophase, what happens to the DNA?
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What is the role of microtubules in mitosis?
What is the role of microtubules in mitosis?
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What is the term for the entire process of cell division?
What is the term for the entire process of cell division?
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During which stage of mitosis do chromosomes line up in the middle of the cell?
During which stage of mitosis do chromosomes line up in the middle of the cell?
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What is NOT a function of centrosomes?
What is NOT a function of centrosomes?
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What is the primary role of centrosomes in mitosis?
What is the primary role of centrosomes in mitosis?
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What is the stage of mitosis where the chromosomes are lined up at the center of the cell?
What is the stage of mitosis where the chromosomes are lined up at the center of the cell?
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What is the term for the stage where the microtubules start pulling the sister chromatids apart?
What is the term for the stage where the microtubules start pulling the sister chromatids apart?
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What is the point where the microtubules connect to the chromosomes called?
What is the point where the microtubules connect to the chromosomes called?
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What is the term for the process of the cellular membrane pinching in to form two cells?
What is the term for the process of the cellular membrane pinching in to form two cells?
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What happens to the nuclear membrane during telophase?
What happens to the nuclear membrane during telophase?
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What is the stage of mitosis where the chromosomes start to unwind and return to their chromatin form?
What is the stage of mitosis where the chromosomes start to unwind and return to their chromatin form?
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What is the term for the chromosomes once they have separated and are no longer sister chromatids?
What is the term for the chromosomes once they have separated and are no longer sister chromatids?
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What is the stage of mitosis where the nuclear envelope disappears and the chromosomes condense?
What is the stage of mitosis where the nuclear envelope disappears and the chromosomes condense?
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What is the term for the process of cell division?
What is the term for the process of cell division?
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What is the stage of mitosis that comes after anaphase?
What is the stage of mitosis that comes after anaphase?
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Study Notes
Mitosis: Cell Division
- Mitosis is the process by which one nucleus turns into two nuclei, each with the original genetic information.
- Mitosis is followed by cytokinesis, which splits each nucleus into a separate cell.
Prophase
- During prophase, the DNA condenses into visible chromosomes.
- The nuclear membrane starts to disappear.
- The centrosomes migrate to opposite sides of the cell.
- Each chromosome consists of two sister chromatids connected at the centromere.
Metaphase
- The nuclear membrane is gone, and the chromosomes line up in the middle of the cell.
- The centrosomes are at opposite ends of the cell.
- Microtubules extend from the centrosomes to the centromeres of the chromosomes.
- The microtubules help pull and push things in the right way.
Anaphase
- The microtubules start pulling on each of the sister chromatids.
- Each centrosome pulls one of the sister chromatids towards it.
- This process results in four chromosomes, each an independent chromosome.
Telophase
- The cellular membrane starts to pinch in preparation for cytokinesis.
- The DNA begins to unwind, and the nuclear membranes start to form around the DNA.
- The centrosomes re-form, and the DNA returns to its chromatin form.
Cytokinesis
- Cytokinesis is the process by which the cell splits into two separate cells.
- It begins near the end of mitosis and finishes after telophase.
- The cellular membrane pinches together, fully dividing the larger cell into two separate cells.
Cell Cycle
- After cytokinesis, each new cell goes through interphase (G1, S-phase, G2 phase).
- The cell then goes through mitosis again, and the process repeats.
- This process results in exponential cell growth.
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Description
Learn about the process of mitosis, where one nucleus turns into two with the same genetic information, and cytokinesis, which splits each nucleus into two cells.
