Practice question
Question
Which of the following DNA structures contains alternating purine and pyrimidine sequences?
Explanation
Z-DNA accurately describes the structural composition or molecular organization asked about in this question. In Nucleic Acid, knowledge of molecular structure is directly linked to understanding biological function. The specific arrangement of chemical components in Z-DNA determines its physical properties, biological activity, and interactions with other molecules. The other options (A-DNA, B-DNA, and Triple-stranded DNA) describe different structural arrangements, incorrect stoichiometry, or compositions of different biological molecules.
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