J.W. SHULER / SCIENCE PHOTO LIBRARY J.W. SHULER / SCIENCE PHOTO LIBRARY
Cell division. Immunofluorescent light micrograph of the prometaphase stage of cell division (mitosis). Antibodies have beeen used to attach fluorescent dyes to specific cell tissues. The nuclear membrane (not seen) that encloses the chromosomes (blue) is breaking down. This allows the chromosomes contained within it to replicate and form two new nuclei. The actin microfilaments (red) and tubulin microtubules (green) of the cytoskeleton maintain the structure of the cell. Mitotic cell division produces two identical daughter cells. Cell taken from a rat kangaroo kidney.
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