DON W. FAWCETT / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE PHOTO LIBRARY
First in a sequence of transmission electron micrographs (TEM) showing dividing mitochondria in the gastric mucosa of a mole. Here, the bilaminar septum has been formed, but separation of the two compartments by invasion of a fold of the outer membrane has not yet begun. THE CELL 2nd edition.
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