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Online Onion Root Tips

Determining time spent in different phases of the cell cycle

This cell has a prominent nucleolus (the dark spot in the nucleus), which is not a feature of cells in prophase. In prophase, the chromosomes are condensing and the nucleolus dissapears.

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The Biology Project > Cell Biology > Intro to Onion Root Tips Activity > Activity


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Tuesday, March 11, 1997
Revised: August 2004
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