NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
Dividing cell. Light micrograph of a section through pig cells showing one (centre) in the process of dividing through mitosis. This is the Anaphase stage. The chromosomes (purple) have already replicated and the duplicates are being pulled apart by fibres of the cell skeleton known as microtubules (green). Magnification unknown.
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