Question:
The type of bond represented by the dotted line ‘-----’ in a schematic polynucleotide chain is:
The type of bond represented by the dotted line ‘-----’ in a schematic polynucleotide chain is:
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Identify bonds in biomolecules:
N-glycosidic linkage: Between sugar and base in nucleotides.
Phosphodiester bond: Backbone of DNA/RNA.
Hydrogen bond: Holds DNA strands together.
Peptide bond: Found in proteins.
Updated On: Jan 13, 2026
- Hydrogen bond
- Peptide bond
- N-glycosidic linkage
- Phosphodiester bond
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The Correct Option is C
Solution and Explanation
Explanation: Phosphodiester bonds connect the phosphate group of one nucleotide to the sugar of another, forming the backbone of a polynucleotide chain.
This bond is known as an N-glycosidic linkage. It connects the 1' carbon of the pentose sugar to the nitrogen atom of the nitrogenous base.
Other bonds in the polynucleotide structure:
Phosphodiester bond: Links the sugar molecules of adjacent nucleotides. Hydrogen bond: Occurs between complementary nitrogenous bases in double-stranded DNA.
Peptide bond: Found in proteins, not in polynucleotides.
This bond is known as an N-glycosidic linkage. It connects the 1' carbon of the pentose sugar to the nitrogen atom of the nitrogenous base.
Other bonds in the polynucleotide structure:
Phosphodiester bond: Links the sugar molecules of adjacent nucleotides. Hydrogen bond: Occurs between complementary nitrogenous bases in double-stranded DNA.
Peptide bond: Found in proteins, not in polynucleotides.
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