DR PAUL ANDREWS, UNIVERSITY OF DUNDEE / SCIENCE PHOTO LIBRARY DR PAUL ANDREWS, UNIVERSITY OF DUNDEE / SCIENCE PHOTO LIBRARY
Dividing cells. Computer artwork of a spiral of cells during mitosis (nuclear division). During mitosis two daughter nuclei are formed from one parent nucleus. These cells are at the metaphase stage, where the chromosomes (white) line up along the centre of the cell, and microtubules, or spindles (red), attach to the chromosomes. Microtubules, part of the cell's cytoskeleton, grow from each pole of the cell, and pull the identical halves of the chromosomes apart. The cell goes on to divide in half, with each new cell retaining a copy of the parent cell's genetic information.
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