Question:medium

Nucleotides are joined together by

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In nucleic acids, phosphodiester bonds form the backbone of the structure by connecting the sugar and phosphate groups of adjacent nucleotides.
Updated On: Feb 24, 2026
  • Glycosidic linkage
  • Peptide linkage
  • Hydrogen bonding
  • Phosphodiester linkage
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The Correct Option is D

Solution and Explanation

In nucleic acids (DNA and RNA), nucleotides are linked by phosphodiester bonds. These bonds involve a phosphate group that bridges the 3' carbon of one sugar molecule to the 5' carbon of another.
Step 2: Therefore, option (4) is the correct selection.
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