单词 cytosine 释义 BETA

Examples ofcytosine

Dictionary> Examples ofcytosinecytosineisn’t in the Cambridge Dictionary yet. You can help!Add a definitionThe two additionalcytosinenucleotides that constitute the bulge are highlighted in green.From theCambridge English CorpusThere are 30 adenines in conserved single-stranded positions compared with 26 thymines, 9 guanines and 5 cytosines.From theCambridge English CorpusThe point mutations at codon-46 and codon-108 represent transitional pyrimidine (thymine tocytosine) and purine (guanine to adenine) substitutions respectively.From theCambridge English CorpusParamutation of the r1 locus of maize is associated with increasedcytosinemethylation.From theCambridge English CorpusNote 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 CorpusSpontaneous deamination of 5-methylcytosine to thymine causes a 12-fold increased mutation frequency relative to unmodifiedcytosine.From theCambridge English CorpusThe contribution ofcytosineprotonation to triplex stability.From theCambridge English CorpusPurines and pyrimidines, including adenine, guanine,cytosine, thymine and uracil, play a major role in terrestrial biochemistry.From theCambridge English CorpusThe 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 CorpusShapiro (1995, 1999) addressed difficulties in prebiotic syntheses of nucleo- bases adenine andcytosine.From theCambridge English CorpusThe 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 CorpusWith 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 CorpusCytosinemethylation in gene silencing mechanisms.From theCambridge English CorpusThe product contains unconvertedcytosinewhere they were previously methylated, butcytosineconverted to uracil if they were previously unmethylated.FromWikipediaThis 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.FromWikipediaThis 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.FromWikipediaThis 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.FromWikipediaThis 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.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.

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