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Question
Biology
Posted 9 months ago
What force of interaction does not contribute to the formation of the double stranded dna helix
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Answer from Sia
Posted 9 months ago
Answer
Ionic bonds
Solution
a
Hydrogen bonds: These bonds form between the nitrogenous bases of the two DNA strands, specifically between adenine and thymine, and between cytosine and guanine
b
Van der Waals forces: These weak interactions occur between the stacked base pairs in the DNA helix, contributing to the stability of the structure
c
Hydrophobic interactions: These interactions occur as the hydrophobic bases are buried inside the helix, away from the aqueous environment, which helps stabilize the DNA structure
d
Covalent bonds: These bonds form the backbone of the DNA helix, connecting the sugar and phosphate groups
Key Concept
Ionic bonds
Explanation
Ionic bonds do not significantly contribute to the formation of the double-stranded DNA helix. The primary forces involved are hydrogen bonds, van der Waals forces, hydrophobic interactions, and covalent bonds.
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