DR DON FAWCETT / SCIENCE PHOTO LIBRARY DR DON FAWCETT / SCIENCE PHOTO LIBRARY
False-colour transmission electron micrograph (TEM) of the nuclear envelope seen edge-on showing two nuclear pores closed by a dark-staining diaphragm. The nucleus lies on the right of the cell & the cytoplasm on the left. The double- layered nuclear membrane is clearly visible as is the clustering of dark- staining chromatin on the inner surface of the nuclear envelope. The pores control the export of material from the nucleus to the cytoplasm. Magnification: x15,800 at 35mm size. Pale green tint (50Y30G). Microcosmos P. 111 fig. Fawcett, The Cell, 2nd edition P.271 fig.146.
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