HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Mitosis. Image 3 of 8. Light micrograph of a hyacinth root cell during metaphase of mitosis (nuclear division). Mitosis is the formation of two daughter nuclei from one parent nucleus. At metaphase the chromosomes, which contain two identical chromatids and are made of deoxyribonucleic acid (DNA, red), line up along the centre of the cell. Spindles (not seen) start to grow from the poles of the cell towards the chromosomes. Spindles are made up of microtubules, part of the cell's cytoskeleton. Magnification: x1150 when printed at 10 centimetres wide. For images showing the cell cycle see P672/146- P672/153.
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