Definition of Z-DNA in English:

Z-DNA

Syllabification: Z-DNA

noun

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 zigzag course.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody