DR PAUL ANDREWS, UNIVERSITY OF DUNDEE / SCIENCE PHOTO LIBRARY DR PAUL ANDREWS, UNIVERSITY OF DUNDEE / SCIENCE PHOTO LIBRARY
Mitosis. Fluorescence micrograph of a cell during abnormal mitosis (nuclear division). During mitosis two daughter nuclei are formed from one parent nucleus. This requires organisation of the chromosomes and mitotic spindles (pink) to ensure that each cell retains an exact copy of the parent cell's genetic information. Usually the spindles grow from each pole, to the chromosomes' centres (centromeres, green). However, in this cell the spindles are a tangled mess. Abnormal mitosis can lead to cell abnormalities or cell death.
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