DR GOPAL MURTI / SCIENCE PHOTO LIBRARY DR GOPAL MURTI / SCIENCE PHOTO LIBRARY
Cell division. Transmission electron micrograph (TEM) of cytokinesis (division of a cell's cyto- plasm) after mitosis of a human embryonic kidney cell. This is a tissue culture cell. In this late phase of cell division, telophase, the nucleus has divided in two (dark staining). Each nucleus con- tains identical genetic material of the original mother cell. Microtubules and actin filaments (at centre) were the means of transporting the genetic material to either daughter cell. At telophase, the plasma membrane in the middle of the dividing cell is drawn in to form a cleavage furrow, which finally breaks the cell into two complete daughter cells. Magnification: x6,250 at 8x10 inch size.
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