. Cytology. Cytology. RADIATION HAZARDS In recent years the testing of radioactive explosive devices has been carried out at high level, resulting in bitter worldwide debate concerning the hazards of radioactivity. It is not a function of this book to debate these issues, but a few pertinent points should be made, especially since much of the argument has little or nothing to do with known facts. Radiation damages biological systems in essentially three ways: (1) It kills cells and thus organisms, (2) it modifies metabolic systems gen- erally to the detriment of the organism concerned, and (3)
. Cytology. Cytology. RADIATION HAZARDS In recent years the testing of radioactive explosive devices has been carried out at high level, resulting in bitter worldwide debate concerning the hazards of radioactivity. It is not a function of this book to debate these issues, but a few pertinent points should be made, especially since much of the argument has little or nothing to do with known facts. Radiation damages biological systems in essentially three ways: (1) It kills cells and thus organisms, (2) it modifies metabolic systems gen- erally to the detriment of the organism concerned, and (3) it induces changes in genetic material usually detrimental to subsequent genera-. lb) Figure 9-3. (Contin.) position of two small fragments located under the long chromosome. They were omitted for reasons of clarity. (From Wilson, G. B. and Sparrow, A. H., 1960. "Configurations Resulting from Iso-Chromatid and Iso-Subchromatid Unions after Meiotic and Mitotic Prophase Irradiation," Chromosoma, 11, Figs. 10 and 11, p. 240. Courtesy of Dr. A. H. Sparrow, Brookhaven Na- tional Laboratory.) RADIATION CYTOLOGY / 199. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, G. B. (George Bernard), 1914-; Morrison, John H. (John Herbert), 1927-. New York, Reinhold
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