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Day 7: Jumpin' Genes!

The Cell Divides

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Cell Division Once the daughter chromosomes have been separated, the mitotic spindle disassembles, the nuclear membrane reforms, and the daughter chromosomes begin to unwind. The centrioles then direct contractile proteins (like those making up muscle) to assemble midway between the two new nucleii. These contractile fibers attach themselves to the cell membrane. When they contract, they pinch the cell in two. This stage of mitosis is referred to as telophase. Mitosis is complete; one cell has become two.



Text and illustration by Janet Sinn-Hanlon

- Page 7 of 10 -

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