Phosphoric acid can develop _ with the OH group of pentose sugar:
Correct answer: B. Ester linkage
- A. Hydrogen bond
- B. Ester linkage
- C. Covalent bond
- D. Ionic Bond
Explanation
The correct answer is ester linkage. Phosphoric acid can react with the hydroxyl (OH) group of a pentose sugar to form an ester linkage, known as a phosphoester bond. This type of bond is crucial in the backbone of DNA and RNA, where phosphoric acid links with sugars. Hydrogen bonds (Option A) are not involved in forming the primary structure of nucleotides. Although covalent bonds (Option C) are involved, the specific type here is an ester linkage. Ionic bonds (Option D) are not relevant to this interaction.
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