DIFFERENTIAL X-RAY SENSITIVITY OF TRADESCANTIA CHROMOSOMES DURING THE MITOTIC CYCLE
نویسندگان
چکیده
منابع مشابه
The Effects of Ultraviolet and X-Ray Treatment on the Pollen Tube Chromosomes of Tradescantia.
HE cytogenetic interest in ultraviolet radiation resides in the hope T that the qualitatively discriminating nature of this type of radiant energy will yield still further evidence as to the structure and behavior of the hereditary mechanism. It is now known that ultraviolet, like X-rays, can produce gene mutations and chromosomal changes; it is likewise known that, unlike X-rays, ultraviolet i...
متن کاملX-Ray and Ultraviolet Studies on Pollen Tube Chromosome: II The Quadripartite Structure of the Prophase Chromosomes of Tradescantia.
2 Stern, C., Zeit. f. i. Abst. u. Vererb., 52, 373 (1929). 3 Bridges, C. B., Ibid., 60, 207 (1932). 4 Schultz, J., and Bridges, C. B., Amer. Nat., 66, 323 (1932). 6 Beadle, G. W., andcEphrussi, Boris, Proc. Nat. Acad. Sci., 22, 536 (1936). 6 Beadle, G. W., Physiol. Rev., 25, 643 (1945). 7 Beadle, G. W., and Coonradt, V. L., Genetics, 29, 291 (1944). 8 Beadle, G. W., and Tatum, E. L., Amer. Jour...
متن کاملAn Analysis of X-Ray Induced Chromosomal Aberrations in Tradescantia.
HE cause and nature of chromosomal alterations has become an imT portant genetic problem since it has been shown that both mutation and speciation often are associated with structural alterations of the chromosomes (DOBZHANSKY 1937). The frequency of spontaneous structural changes is too low in most organisms to permit a statistical analysis of types or frequencies of alterations, although rece...
متن کاملImpact of Photon Spectra on the Sensitivity of Polymer Gel Dosimetry by X-Ray Computed Tomography
Introduction: The purpose of the current study was to investigate the effect of X-ray spectra on the sensitivity of a polymer gel dosimeter imaged with a conventional computed tomography (CT) scanner. Material and Methods: The whole process of CT imaging of an irradiated polymer gel was simulated by MCNPX Monte Carlo (MC) code. The imaging of polyacrylamide gel was accomplished by means of a co...
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ژورنال
عنوان ژورنال: Genetics
سال: 1950
ISSN: 1943-2631
DOI: 10.1093/genetics/35.2.175