Mitosis

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What is mitosis?

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Mitosis is the process of cell division in which a single cell divides to produce two identical daughter cells, each with the same number of chromosomes as the parent cell.

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NGSS.HS-LS1-4

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What is the purpose of mitosis in multi-cellular organisms?

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The purpose of mitosis in multi-cellular organisms is to replace damaged or dead cells, facilitate growth, and ensure proper development.

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NGSS.HS-LS1-4

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What are the stages of mitosis?

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The stages of mitosis are prophase, metaphase, anaphase, and telophase.

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NGSS.HS-LS1-4

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What happens during prophase?

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During prophase, the chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the spindle apparatus begins to form.

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NGSS.HS-LS1-4

Front

What occurs during metaphase?

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During metaphase, chromosomes align at the cell's equatorial plane, and spindle fibers attach to the centromeres of the chromosomes.

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NGSS.HS-LS1-4

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What is anaphase?

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Anaphase is the stage of mitosis where sister chromatids are pulled apart to opposite poles of the cell.

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NGSS.HS-LS1-4

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What happens during telophase?

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During telophase, the chromosomes de-condense back into chromatin, the nuclear envelope re-forms around each set of chromosomes, and the cell prepares to divide.

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NGSS.HS-LS1-4

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What is a chromosome?

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A chromosome is a long, thread-like structure made of DNA and proteins that contains genetic information.

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

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What is a chromatid?

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A chromatid is one half of a duplicated chromosome, which is joined to its sister chromatid at the centromere.

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NGSS.HS-LS1-4

Front

What is a centromere?

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A centromere is the region of a chromosome where the two sister chromatids are joined together.

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NGSS.HS-LS1-4