| 词汇 | nucleotide |
| 释义 | nucleotide noun[ C ] chemistry, biology specializeduk /ˈnjuːkli.ə.taɪd/ us /ˈnuː.kli.oʊ/ one of a group of chemical compounds found in living cells in nucleic acids such as DNA and RNA核苷酸（核酸中的一类化合物，例如 DNA 和 RNA） Compare basenoun(IN CHEMISTRY)specialized Chemical elements actinium alkali metal americium astatine berkelium brimstone bromine calcium fluorine germanium iodine lithium manganese nickel plutonium quicksilver selenium silicon sodium transition metal Examples of nucleotidenucleotide The scale bar represents the estimated number of nucleotide substitutions per nucleotide site. Differences among nucleotide sequences were due to insertions/deletions of 1- 6 nucleotides and substitution events. Given the similarity of the sequences analysed, the nucleotide alignments are obvious and are not shown here. The nucleotide binding site is located in a pocket between the two domains. A protein's selectivity for a particular nucleotide, for example, is quantified in terms of its relative affinities for two different, but similar, nucleotides. The nucleotides and amino acids are numbered along the upper and lower of the margins, respectively. The enzyme was purified and its ability to be activated by cyclic nucleotides was examined. Consistent with the observation that -butyrolactone receptors recognize the same nucleotide sequence, the residues on helix 3 are completely conserved among the receptors. The nucleotide state of the catalytic centers together with the position of the subunit determines the conformation of the associated subunit. The nucleotide sequence of the amplicon from the water was identical to those determined from the three stool specimens for which sequencing was performed. The number of heterozygous nucleotide sites maintained in a finite population due to steady flux of mutations. The number of heterozygous nucleotide sites maintained in a finite population due to the steady flux of mutations. Linkage disequilibrium between two segregating nucleotide sites under steady flux of mutations in a finite population. Branch lengths are proportional to the estimated number of nucleotide changes. Genetic mapping will be further simplified by the generation of additional microsatellite markers and the development of markers based on single nucleotide polymorphisms. 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. Collocations withnucleotidenucleotideThese are words often used in combination with nucleotide. Click on a collocation to see more examples of it. nucleotide base Phred quality scores are assigned to each nucleotide base call in automated sequencer traces. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. nucleotide difference Heteroduplexes are expected for any subject who is heterozygous for a nucleotide difference in the amplified region. nucleotide diversity The main effects on nucleotide diversity levels and the frequency spectrum of mutations will be seen in the inverted arrangement. 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. See all collocations with nucleotide |
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