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Out of the following, which type of interaction is responsible for the stabilisation of α-helix structure of proteins?

1. Ionic bonding
2. Hydrogen bonding
3. Covalent bonding
4. van der Waals forces

Correct answer: Hydrogen bonding

Solution

Hydrogen bonding is crucial for stabilizing the α-helix structure in proteins, as these bonds form between the carbonyl oxygen of one amino acid and the amide hydrogen of another, creating a helical shape that is essential for protein structure.

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