What is the primary function of DNA?

The primary function of DNA is to store and transmit genetic information. DNA, or deoxyribonucleic acid, consists of two long strands that coil around each other to form a double helix, which houses the genetic blueprint for the development, functioning, and reproduction of all living organisms. It contains specific sequences of nucleotides that correspond to genes, which are then expressed as proteins and play crucial roles in various biological processes.

This genetic information is passed down from parents to offspring during reproduction, ensuring that traits can be inherited. Additionally, DNA is involved in the replication process, whereby it copies itself to provide an identical set of genetic information to each new cell. This ability to store and convey genetic instructions is fundamental to the continuity of life and evolution.