| 单词 | genetic code |
| 释义 | > as lemmasgenetic code genetic code n. the means by which DNA and RNA carry genetic information, consisting of triplets of nucleotides which specify particular amino acids for protein synthesis (cf. triplet code n. at triplet n. Compounds 2); the complete sequence of such information relating to a particular organism; also in extended use and figurative. ΚΠ 1958 Nature 12 July 112/1 (title) A possible mechanism for the initial transfer of the genetic code from deoxyribonucleic acid to ribonucleic acid. 1976 F. J. Ayala Molecular Evol. ii. 12 Substitutions in the DNA nucleotide sequence of a structural gene may result in changes in the amino acid sequence of the polypeptide encoded by the gene, although this is not always the case because of the degeneracy of the genetic code. 1994 New Scientist 29 Jan. 30/1 One flourishing school, known as ‘social constructionism’, compares ways of thought in different societies and at different times in history to show how language acts as a ‘genetic code’ for the beliefs and customs of a culture. 2000 Sci. News 29 Apr. 286/1 With comparative genomics, scientists match up the complete genetic code of one organism to the code of a second organism, rather than doing a piecemeal comparison of snippets. 2001 Brill's Content Apr. 93/1 One of the things that is written into the genetic code of public broadcasting is that local autonomy would rule. 2003 R. Dawkins Devil's Chaplain i. 28 The genetic code is truly digital, in exactly the same sense as computer codes. < as lemmas |
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