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Which of the following functions is NOT associated with proteins?

  1. Transport of molecules

  2. Storage of genetic information

  3. Catalyzing biochemical reactions

  4. Structural support in cells

The correct answer is: Storage of genetic information

The function that is not associated with proteins is the storage of genetic information. This role is primarily fulfilled by nucleic acids, such as DNA and RNA. DNA serves as the blueprint for genetic information, storing the instructions necessary for the development, functioning, and reproductive processes of living organisms. In contrast, proteins play vital roles in various biological processes. For example, they transport molecules, with hemoglobin transporting oxygen in the blood, catalyze biochemical reactions as enzymes, and provide structural support in cells, such as collagen in connective tissues. These functions highlight the diverse roles proteins play in maintaining cellular and organismal functions, while the storage of genetic information remains exclusive to nucleic acids.