FRANK FOX / SCIENCE PHOTO LIBRARY FRANK FOX / SCIENCE PHOTO LIBRARY
Micrasterias desmid dividing. Differential interference contrast (DIC) light micrograph of a Micrasterias sp. desmid undergoing mitosis to form two daughter cells. Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Micrasterias can reproduce both asexually (as here) and sexually. Magnification: x280 when printed 10 centimetres wide.
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