7th Grade Mitosis

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What is Mitosis?

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

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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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What happens during Prophase?

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During Prophase, the chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the spindle fibers begin to form.

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What happens during Metaphase?

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During Metaphase, chromosomes line up at the cell's equator, and spindle fibers attach to the centromeres of the chromosomes.

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What happens during Anaphase?

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During Anaphase, the sister chromatids are pulled apart to opposite poles of the cell by the spindle fibers.

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What happens during Telophase?

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During Telophase, the chromosomes reach the poles, begin to de-condense back into chromatin, and the nuclear envelope re-forms around each set of chromosomes.

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What is Cytokinesis?

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Cytokinesis is the process that follows Mitosis, where the cytoplasm of the cell divides, resulting in two separate daughter cells.

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What is a Chromosome?

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A Chromosome is a structure made of DNA and proteins that contains genetic information. Humans have 46 chromosomes in each somatic cell.

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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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What is a Centromere?

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