| 单词 | double mutant |
| 释义 | > as lemmasdouble mutant double mutant n. an organism, gene, etc., which carries two mutations. Π 1911 Science 14 July 52/1 (title) Double mutants in silkworms. 1982 G. Bell Masterpiece of Nature 98 Double mutants will often be more frequent in asexual than in sexual populations, because of the destructive effect of meiosis. 2021 Wall St. Jrnl. 1 May a15/4 A mythologizing mood is also why new variants, including the scary-sounding ‘double mutant’, feature so prominently in Western accounts. Viruses mutate, yes—some 300,000 distinct Covid-causing strains are estimated to exist. < as lemmas |
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