Why DNA replication is needed before a cell divides into two daughter cells?

DNA replication is essential before a cell divides to ensure that each daughter cell receives an identical set of genetic information. During cell division, the original DNA is duplicated, allowing each new cell to inherit the complete set of instructions necessary for growth, development, and functioning. Without replication, daughter cells would lack the necessary genetic material, leading to potential malfunctions or cell death. This process is crucial for maintaining genetic continuity across generations of cells.