短語和例子
DNA = 1.deoxyribonucleic acid 【生物化學】去[脫]氧核糖核酸。 2.deoxypentose-nucleic acid 去[脫]氧戊糖核酸。
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That cannot escape discussion in a minihistory of dna . 這在DNA的研究史上是有口皆碑的。 The dna of chromatin must replicate before cell division . 染色質DNA在細胞分裂之前必須復制。 The sugar in all the nucleotides of dna is deoxyribose . 所有DNA的核苷酸中的糖均是脫氧核糖。 Each segment of dna thus synthesized is called a replicon . 這樣合成的每一片段DNA稱為復制子。 Recombinant dna is also an excellent example of this problem . 重組體DNA也是這類問題的一個極好的例子。 Rate of reassociation of dna fragments is a second-order reaction . DNA片段再結合的速度是一個次級反應。 Adenoviruses are the only enteric viruses that contain a dna core . 腺病毒是唯一含有DNA核心的腸道病毒。 The dna of bacteria is replicated by a semiconservative mechanism . 細菌的DNA是通過一種半保守性機理復制的。 Geminiviruses are the only other group of plant dna viruses known . 雙聯病毒是已知的唯一另一組植物DNA病毒。 Like mrna, both trna and rrna are transcripts of chromosomal dna . TRNA及rRNA同mRNA一樣,都是染色體DNA的轉錄產物。
Deoxyribonucleic acid (DNA) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. Along with RNA and proteins, DNA is one of the three major macromolecules essential for all known forms of life.
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