DR ALEXEY KHODJAKOV / SCIENCE PHOTO LIBRARY DR ALEXEY KHODJAKOV / SCIENCE PHOTO LIBRARY
Mitosis. Digital three-dimensional immunofluoresc- ent light micrograph of a section through a rat kangaroo kidney epithelial cell during the late prometaphase stage of mitotic cell division. The nuclear membrane (not seen) that encloses the chromosomes (blue) is breaking down. The actin microfilaments (red) and tubulin microtubules (green) of the cytoskeleton maintain the structure of the cell. The two centrosomes (pink dots, upper left & lower right) are microtubule-organizing centres. Mitosis produces two identical daughter cells. Antibodies have been used to attach fluorescent dyes to specific cell tissues. Magnification: x500 at 6x7cm size.
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