“cytosine”的英文意思_释义_用法

单词

cytosine

释义

cytosine Biochem.|ˈsaɪtəʊsaɪn, -iːn|
[ad. G. cytosin (A. Kossel and A. Neumann 1894, in Ber. d. Deut. Chem. Ges. XXVII. ii. 2219), f. cyto- + -ose² + -ine⁵.]
A crystalline pyrimidine base, C₄H₅N₃O, which is one of the constituents of nucleic acids and occurs in double-stranded DNA paired with the purine base guanine.
1894Jrnl. Chem. Soc. LXVI. i. 631 Hydrolysis of nucleïc acids... Cytosine, C₂₁H₃₀N₁₆O₄ + 5H₂O, is precipitated.1954New Biol. XVI. 15 In desoxyribose nucleic acid the purine is either adenine or guanine, the pyrimidine either cytosine or thymine.1955Sci. Amer. Oct. 70/3 DNA is a long-chain molecule constructed from four comparatively simple chemical units: adenine, thymine, guanine and cytosine.1969Times 8 Dec. 12/2 One possibility is that the cytosine arabinoside..destroys the normal cells in bone marrow.

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