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单词 parasitic dna
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parasitic DNA
parasitic DNA n. Molecular Biology a region of DNA in a eukaryotic genome that has no apparent function other than perpetuating itself.
ΚΠ
1979 J. R. Cameron et al. in Cell 16 748/2 Alternatively, Ty1 DNA may be a nonviral ‘parasitic’ DNA. Such DNAs may be capable of maintaining themselves in the genome and are transmitted by mating.
1989 Brit. Med. Jrnl. 3 June 1528/2Parasitic DNA’ has attracted attention too, after the announcement by Francis Crick and others at the Salk Institute in 1980 that some plant and animal DNA is there purely ‘for the ride’.
1996 Economist 20 July 85/1 For more than 500m years, the genes of insects have contained an ancient segment of parasitic DNA called R2.
extracted from parasiticadj.n.
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