Dna Structure
Easychemistry
DNA double helix is stabilized by:
Select the correct option:
Solution
Incorrect! Answer:
Hydrogen bonds between complementary bases
According to the Watson-Crick Model of DNA:
- The two strands are held together by Hydrogen Bonds between complementary nitrogenous bases.
- Adenine (A) pairs with Thymine (T) via 2 H-bonds.
- Guanine (G) pairs with Cytosine (C) via 3 H-bonds.
- Hydrophobic interactions and van der Waals forces between base stacks also contribute to the stability of the double helix.
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About This Question
- Subject
- chemistry
- Chapter
- biomolecules
- Topic
- dna structure
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Hydrogen bonds between complementary bases
According to the Watson-Crick Model of DNA:
- The two strands are held together by Hydrogen Bonds between complementary nitrogenous bases.
- Adenine (A) pairs with Thymine (T) via 2 H-bonds.
- Guanine (G) pairs with Cytosine (C) via 3 H-bonds.
- Hydrophobic interactions and van der Waals forces between base stacks also contribute to the stability of the double helix.
This easy difficulty chemistry question is from the chapter biomolecules, covering the topic of dna structure. It appeared in the 2025 exam.
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