Given below are four statements regarding biomolecules: Statement A: Denaturation of a protein does not affect its primary structure because covalent peptide bonds are not broken by physical changes like heating. Statement B: In a DNA double helix, the two strands are complementary because they are linked together by 3'-5' phosphodiester bonds between the nitrogenous bases. Statement C: The N-glycosidic linkage in a

Step-by-step solution

Statement A is correct: Denaturation disrupts secondary and tertiary structures by breaking non-covalent interactions like hydrogen bonds, but it does not break the covalent peptide bonds of the primary structure. Statement B is incorrect: In a DNA double helix, the two strands are held together by hydrogen bonds between the complementary nitrogenous bases, not by phosphodiester bonds. Phosphodiester bonds form the backbone of each individual strand. Statement C is correct: In a nucleoside, the nitrogenous base is