单词 | a dna |
释义 | A DNAA DNADNA which is structurally similar to B- and Z-DNA, has a right-handed helical structure, but is shorter, more compact and occurs only in dehydated DNA samples. It is one of several double-helical forms of DNA, which can also be assumed by DNA-RNA hybrid helices and by regions of double-stranded RNA.A DNAOne of the three forms of DNA. This form is found in DNA gels with relatively little water. It is a right-hand helix with about 11 bases per turn. |
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