| 单词 | saltational |
| 释义 | > as lemmassalˈtational salˈtational adj. of, pertaining to, or occurring by means of saltation. ΘΚΠ the world > life > biology > biological processes > genetic activity > [adjective] > changes or actions of genes or chromosomes > mutation sportive1796 mutating1877 mutant1903 mutational1904 mutated1919 macromutational1952 saltational1963 macromutationist1988 1963 E. Mayr Animal Species & Evol. xv. 435 The reorganization of the gene pool, required for successful speciation, is (except in the case of polyploidy) never saltational. 1963 E. Mayr Animal Species & Evol. xv. 437 Some saltational postulates are based on the assumption of essentially invariant evolutionary rates. 1978 Sci. Amer. Sept. 41/1 Even T. H. Huxley..could not accept the gradual origin of higher types and new species; he proposed a saltational origin instead. < as lemmas |
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