ACTION SPECTRUM FOR PALING (DECREASE IN REFRACTIVE INDEX) OF ULTRAVIOLET-IRRADIATED CHROMOSOME SEGMENTS
نویسندگان
چکیده
منابع مشابه
Optical and Electron Microscopic Changes in Ultraviolet-irradiated Chromosome Segments
Chromosome segments of urodele cells lose some substance after irradiation with about 10(-1) ergs/micro(2) of heterochromatic ultraviolet light. These segments stain faintly or negatively with the Feulgen and pyronine-methyl-green methods and weakly with the Alfert-Gesch-wind stain for basic protein. In the living cells, Perry found in these chromosome segments a decrease of 50 to 60 per cent i...
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The action of the dimer-specific endonuclease V of bacteriophage T4 was studied on UV-irradiated, covalently-closed circular DNa. Form I ColE1 DNA preparations containing average dimer frequencies ranging from 2.5 to 35 pyrimidine dimers per molecule were treated with T4 endonuclease V and analysed by agarose gel electrophoresis. At all dimer frequencies examined, the production of form III DNA...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1963
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.49.1.45