. Cytology. Cytology. ^irf^. fa) (b) Figure 9-2. (a) Photomicrograph of First Meiotic Anaphase Chromo- somes of Trillium erectum; (b) Drawing Illustrating the Configuration of a True Two-Side-Arm Bridge. Strands indicated in the bridge are half chro- matids. Plant irradiated at diakinesis with 25 r of X Rays. (From Wilson, G. B., Sparrow, A. H., and Pond. 1959. "Sub-Chromatid Rearrangements in Trillium erectum. I. Origin and Nature of Configurations Induced by Ionizing Radiation," Am. J. Botany, 46, Fig. 2, p. 310.) MODIFICATION OF RADIATION EFFECTS The question of modifying radi
. Cytology. Cytology. ^irf^. fa) (b) Figure 9-2. (a) Photomicrograph of First Meiotic Anaphase Chromo- somes of Trillium erectum; (b) Drawing Illustrating the Configuration of a True Two-Side-Arm Bridge. Strands indicated in the bridge are half chro- matids. Plant irradiated at diakinesis with 25 r of X Rays. (From Wilson, G. B., Sparrow, A. H., and Pond. 1959. "Sub-Chromatid Rearrangements in Trillium erectum. I. Origin and Nature of Configurations Induced by Ionizing Radiation," Am. J. Botany, 46, Fig. 2, p. 310.) MODIFICATION OF RADIATION EFFECTS The question of modifying radiation effects, especially in the direction of minimizing them. is. of course, of practical importance, and conse- quently has received considerable attention. So far. although sensitivity can be modified in both directions by a variety of conditions, there is no real understandins of the mechanism involved. In general, conditions RADIATION CYTOLOGY / 197. 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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