Why must DNA replicate?

DNA must replicate to ensure that genetic information is accurately passed from one generation of cells to the next. During cell division, whether it’s mitosis or meiosis, the DNA must be duplicated so that each new cell inherits a full set of chromosomes. This process is critical for the proper functioning of cells, growth, repair, and reproduction. Without DNA replication, cells would not be able to divide properly, leading to the loss of genetic information and potential cell malfunction or death.