| 词汇 | nucleic-acid |
| 释义 | nucleic acid noun[ C or U ] chemistry, biology specializeduk /njuːˌkleɪ.ɪk ˈæs.ɪd/ us /nuːˌkleɪ.ɪk ˈæs.ɪd/ a type of acid that exists in all living cells: （存在于生物细胞中的）核酸 DNA and RNA are both nucleic acids.脱氧核糖核酸与核糖核酸均属于核酸。 Biochemistry adipose adrenalin albumin aldosterone amino acid endonuclease endorphin enzymatic enzymatically enzyme messenger RNA mRNA mycoprotein non-enzymatic nuclease spike protein T level testosterone trace element transfer RNA nucleic acid | American Dictionarynucleic acid noun[ C/U ] us/nuˈkli·ɪk ˈæs·ɪd, -ˈkleɪ-/ biology a type of acid, for example, DNA and RNA, that is found in all living cells and contains the genetic information passed from parents to children Examples of nucleic acidnucleic acid Quality and accessibility of targeted nucleicacid was assessed by controls. It turns out that clay (montmorillonite/kaolinite) adsorbed nucleicacid undergoes less radiation damage than free nucleicacid. In later stages of evolution, a group of enzymatic proteins, nucleicacid polymerases, has been selected to catalyse nucleicacid replication. Currently, nucleicacid synthesis inside the cell is a template-directed process catalysed by nucleic acid polymerases which constitute a group of very evolved molecules. The number of experiments needed here and also for nucleicacid assignments strongly depends on the degree of spectral overlap. The variables considered were the number and size of the electrophoretically separated nucleicacid fragments. Charged side chains form electrostatic surfaces complementary to the nucleicacid. Indeed, nucleicacid detection is likely to be a key component in plans for both space-based and sample-return life detection. Thus, if addition of protein to nucleicacid results in precipitation then this does not rule out that the opposite procedure will work. Most ' exact-matching ' problems arise in handling nucleicacid sequences. The synthesis of a self-propagating and infectious nucleicacid with a purified enzyme. The next section provides some background theory on nucleicacid structures. However, the low chemical stability of nucleotides in an aqueous environment also makes it possible that peptides and proteins could precede nucleicacid formation. Thus, it is proposed that nucleicacid or other replicators can best arise from autocatalytic cycles, rather than semi-conservative copying. Indeed, similar findings have been reported in studies performed on other nematodes using nucleicacid binding dyes. See all examples of nucleic acid These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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