Which relatively weak type of bond stabilize the three dimensional structure of large molecules like proteins and dna?

Hydrogen bonds

Explanation:

Intermolecular forces, as its name implies, are the bonds that hold the molecules of a substance together. These forces are also called Van der Waals forces in honor of Dutch physicist Johannes Van der Waals, who researched and proposed the existence of these forces. Among these forces, the ones with the highest intensities are the hydrogen bonds. This type of interaction occurs when the molecule has a hydrogen (“positive pole”) attached to fluorine, nitrogen or oxygen, ie very electronegative elements (“negative poles”).

Hydrogen bonds, as well as other intermolecular forces are relatively weak, but hydrogen bonds are the most intense between them and help stabilize the three-dimensional structure of large molecules, such as proteins and DNA, as they provide bonding between the elements that make up these molecules.

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the answer

b.) bowling ball