| 释义 |
ribonucleic, a. Biochem.|raɪbəʊˈnjuːklɪɪk, -njuːˈkliːɪk, -ˈeɪɪk|
[f. ribo- + nucleic a.]
ribonucleic acid: a generic term for any of the nucleic acids yielding ribose on hydrolysis; they occur chiefly in the cytoplasm of cells, where they direct the synthesis of proteins, and in some viruses, where they also store the genetic information. Abbrev. RNA.
1931Levene & Bass Nucleic Acids ix. 299 Yeast nucleic acid..is the most readily available starting material for chemical work on ribonucleic acids. 1944Ann. Reg. 1943 354 Ribonucleic acids..were found to be widely distributed in high concentrations in mammalian tissues. 1958Times 26 Sept. 15/2 This slightly damaged ribonucleic acid may be the key to the action of interferon. 1967Daily Tel. 8 June 14/6 High concentration in the brain of a chemical known as ribonucleic acid greatly increases the capacity for learning. 1971J. Z. Young Introd. Study Man xi. 147 Nerve cells are characterized by a larger amount of ribonucleic acid in their cytoplasm. |