| 单词 |
biogenesis |
| 释义 |
biogenesis|baɪəʊˈdʒɛnɪsɪs|
[f. Gr. βιο- bio- + γένεσις birth, production.]
1. (See quot.)
1870Huxley Addr. Brit. Assoc. in Nature 15 Sept. 401 The hypothesis that living matter always arises by the agency of pre-existing living matter..to save circumlocution, I shall call the hypothesis of Biogenesis. 1878Tait & Stewart Unseen Univ. vii. §243 To receive the law of Biogenesis as expressing the present order of the world.
2. = biosynthesis (see bio-).
1933Chem. Rev. XIII. 479 Attempts to explain the biogenesis of the terpenes on the basis of occurrence side by side in one or more species of plants have not been wanting. 1959New Scientist 27 Aug. 302/2 The mode of biogenesis of cellulose still remains one of the major unsolved problems of carbohydrate chemistry.
3. The biochemical evolution of living matter, esp. its hypothetical development from complex but inanimate substances.
1960Science 19 Feb. 479 The possibility of recurring biogenesis and the abiotic origin of optical activity are considered. 1965J. B. S. Haldane in S. W. Fox Orig. Prebiological Syst. 11 Some particular group may have been the limiting factor in biogenesis. Perhaps amino acids..were present in adequate amounts, but high-energy phosphates were only rarely so. 1967J. D. Bernal Orig. Life 192 The molecular biology of biogenesis consists of successive stages of topochemical reactions.
Hence bioˈgenesist, one who holds the theory of biogenesis. |
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单词 biogenic 释义 biogenic, a.|badnk|[f. biogeny + -ic.]1. = biogenetic a.1904G. S. Hall ......