单词 | cytosine |
释义 | BETA Examples ofcytosineDictionary> Examples ofcytosine cytosineisn’t in the Cambridge Dictionary yet. You can help! Add a definition The two additionalcytosinenucleotides that constitute the bulge are highlighted in green. From theCambridge English Corpus There are 30 adenines in conserved single-stranded positions compared with 26 thymines, 9 guanines and 5 cytosines. From theCambridge English Corpus The point mutations at codon-46 and codon-108 represent transitional pyrimidine (thymine tocytosine) and purine (guanine to adenine) substitutions respectively. From theCambridge English Corpus Paramutation of the r1 locus of maize is associated with increasedcytosinemethylation. From theCambridge English Corpus Note the hydrogen bond between the exocyclic amine of the 3hcytosinebase and the non-bridging oxygen of the phosphate at the exchange point. From theCambridge English Corpus Spontaneous deamination of 5-methylcytosine to thymine causes a 12-fold increased mutation frequency relative to unmodifiedcytosine. From theCambridge English Corpus The contribution ofcytosineprotonation to triplex stability. From theCambridge English Corpus Purines and pyrimidines, including adenine, guanine,cytosine, thymine and uracil, play a major role in terrestrial biochemistry. From theCambridge English Corpus The 3hcytosineis stacked onto the top of the non-stacked helix, while the 5hcytosineis directed upwards and is located in the minor groove of the top helix. From theCambridge English Corpus Shapiro (1995, 1999) addressed difficulties in prebiotic syntheses of nucleo- bases adenine andcytosine. From theCambridge English Corpus The incoming guanine now is paired with thecytosineof the original duplex and the displaced guanine is situated on the major groove side of the newly formed base pair. From theCambridge English Corpus With widely diffused minerals and metal oxides as catalysts, formamide affords all the precursor nucleic bases: purine, adenine, hypoxanthine (bioisomer of guanine),cytosine, uracil and thymine. From theCambridge English Corpus Cytosinemethylation in gene silencing mechanisms. From theCambridge English Corpus The product contains unconvertedcytosinewhere they were previously methylated, butcytosineconverted to uracil if they were previously unmethylated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hypoxanthine, in a manner analogous to the imine tautomer of adenine, selectively base pairs withcytosineinstead of thymine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The most common nitrogenous bases are adenine,cytosine, guanine, thymine, and uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Methylatedcytosineresidues are unchanged by the treatment, whereas unmethylated ones are changed to uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During the period 1885 to 1901, he was able to isolate and name its five constituent organic compounds: adenine,cytosine, guanine, thymine, and uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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