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Problem 11: Weak interactions to strong interactions

The binding between a specific antibody and a virus is very tight. If the forces that allow interactions between molecules are said to be weak, how can electrostatic attractions, hydrogen bonds, van der Waals bonds and hydrophobic attractions lead to a very strong interaction?

B. Weak interaction is the precursor to the formation of covalent bonds.
The binding between an antibody and a virus does not use covalent bonds.

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