| 单词 | z-dna |
| 释义 | > as lemmasZ-DNA Z-DNA n. Biochemistry DNA in which the double helix has a left-handed rather than the usual right-handed twist and the sugar phosphate backbone follows a zigzagged course. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > nucleic acid > DNA thymo-nucleic acid1904 deoxyribonucleic acid1931 DNA1944 DNase1949 C1958 minicircle1967 Z-DNA1979 1979 A. H.-J. Wang et al. in Nature 13 Dec. 681/2 In looking at this left-handed helix..it is apparent that the ribose-phosphate backbone follows a zig-zag course resulting from alternating residue conformations. Accordingly, we propose to call this Z-DNA. 1983 Sci. Amer. Dec. 92/1 In Z DNA..the repeating unit of the helix is not a single base pair, as it is in A and B DNA, but rather two successive base pairs: G–C followed by C–G. < as lemmas |
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