self-replicating molecules

Self-replicating molecules are fundamental units of life that can make copies of themselves. DNA, for example, is a type of self-replicating molecule that carries genetic information. When a cell divides, DNA unwinds and each strand serves as a template to create new strands, ensuring the genetic material is passed on. This process is crucial for growth, reproduction, and evolution. The ability to replicate allows these molecules to contribute to the complexity of life, as variations in the copying process can lead to evolution over time.