In biology, replication refers to the process of making an exact copy of DNA or RNA molecules. Replication is a fundamental process in cell division, where DNA replication ensures that each daughter cell receives a complete copy of the genetic material. During replication, the two strands of the double-stranded DNA molecule are separated, and each strand serves as a template for the synthesis of a new complementary strand. The result is two identical DNA molecules, each with one original strand and one new strand. RNA replication is a similar process but is less common than DNA replication and occurs in specific contexts, such as the replication of certain viruses. Replication is a critical process for maintaining genetic information and ensuring its accurate transmission to subsequent generations of cells or organisms.