OMIKRON / SCIENCE PHOTO LIBRARY OMIKRON / SCIENCE PHOTO LIBRARY
False-colour transmission electron micrograph (TEM) of the Tobacco Mosaic Virus (TMV). TMV consists of a central RNA helix surrounded by a cylindrical wall of protein. TMV is the cause of leaf mosaic disease in the tobacco plant, Nicotiana tabacum. Magnification: x33,000 at 35mm size, x66,000 at 6x7cm size.
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