| 释义 |
recombinant, a. and n. Genetics.|rɪˈkɒmbɪnænt|
[f. recombine v. + -ant1.]
A. adj. Formed by recombination.
1942Jrnl. Genetics XLIII. 320 Double and higher recombinant types were neglected. 1960New Biol. XXXI. 71 A daughter chromosome might be formed by copying first the ab fragment and then the C portion of the original chromosome so that we now have a recombinant chromosome, abC. 1971D. J. Cove Genetics iii. 21 If a yellow⁓conidiospored strain is crossed to a strain requiring the vitamin biotin, it is found that a considerable excess of parental types over recombinant types is obtained. 1975Nature 18 Dec. 562/3 The hazards associated with cloning recombinant DNA molecules can only be speculated about, since there is no experimental evidence to prove or deny that they exist. 1977Time 7 Mar. 51/1 Should Harvard and M.I.T. be permitted to go ahead with experiments in so-called recombinant DNA-experiments involving the implantation, in cells of a common bacterium, of alien DNA-borne genes? 1978Daedalus Spring 39 Much of the discussion about recombinant DNA research has centred on whether the work is likely to create hazardous organisms.
B. n. A recombinant organism or cell.
1951Jrnl. Gen. Microbiol. V. 59 Produce a double infection and..obtain in the population of virus units resulting a proportion of recombinants. Ibid., The existence of recombinants can..only be demonstrated if conditions can be so arranged as to favour their selective proliferation. 1969A. M. Campbell Episomes ix. 124 Crosses between lambda and 434 fail to produce any recombinants that generate one immunity and respond to another. 1976Nature 1 July 2/3 Foreign genes are inserted into the bacterium by splicing them into a plasmid..and reintroducing the recombinant into the bacterium. |