What is a primary function of DNA?

The primary function of DNA is to store genetic information that is crucial for the production of proteins. DNA contains the instructions needed for an organism to develop, survive, and reproduce. It is structured as a double helix, made up of sequences of nucleotides that encode the instructions in the form of genes. Each gene provides the blueprint for synthesizing a specific protein, which plays a vital role in cellular function and overall biology.

Proteins are responsible for a myriad of functions within living organisms, including serving as enzymes, structural components, signaling molecules, and transporters. Therefore, the ability of DNA to store and transmit this genetic information makes it essential for the continuity of life and the expression of traits.

In contrast, the other options presented do not accurately represent the primary roles of DNA. While energy production, nutrient transport, and cell division are crucial processes within cells, they are not the primary functions or responsibilities of DNA itself. Instead, DNA's role is centered firmly on the storage and transmission of genetic information essential for protein synthesis.