منابع مشابه
Cx32 gene mutation in a chemically induced rat liver tumour.
Cx32 is a major gap junction protein of the liver and is often aberrantly expressed in liver tumours. We have studied mutation of the Cx32 gene during chemically induced hepatocarcinogenesis. DNA from 12 rat liver tumours induced by diethylnitrosamine or N-ethyl-N-hydroxyethylnitrosamine (EHEN) was analysed by the PCR/SSCP method. One tumour induced by EHEN harboured a G--> A transition mutatio...
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F or approaching the truth about the clinical phenomenon of tinnitus from more and more possible aspects, it is important in the sense of the old Aristotelean systematics of scientific thinking to choose various and alternating directions for regarding the phenomenon. Therefore, today I am also choosing a biochemical angle of view. Our model of good and bad hearing, ear noise or tinnitus , is p...
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Mutagenized populations have provided important materials for introducing variation and identifying gene function in plants. In this study, an ethyl methanesulfonate (EMS)-induced soybean (Glycine max) population, consisting of 21,600 independent M2 lines, was developed. Over 1,000 M4 (5) families, with diverse abnormal phenotypes for seed composition, seed shape, plant morphology and maturity ...
متن کاملLack of chemically induced mutation in repair-deficient mutants of yeast.
Two genes, rad6 and rad9, that confer radiation sensitivity in the yeast Saccharomyces cerevisiae also greatly reduce the frequency of chemically-induced reversions of a tester mutant cyc1-131, which is a chain initiation mutant in the structural gene determining iso-1-cytochrome c. Mutations induced by ethyl methanesulfonate (EMS), diethyl sulfate (DES), methyl methanesulfonate (MMS), dimethyl...
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BACKGROUND AND AIMS Sulfonylurea (SU) herbicides are used extensively in cereal-livestock farming zones as effective and cheap herbicides with useful levels of residual activity. These residues can persist beyond the cropping year, severely affecting legumes in general, and annual medics in particular, resulting in reduced dry matter production, lower seed yields and decreased nitrogen fixation...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 1948
ISSN: 0007-0920,1532-1827
DOI: 10.1038/bjc.1948.19