Answer:
DNA replication is the process by which a cell makes an exact copy of its DNA before cell division occurs. This process ensures that each new cell produced during cell division receives a complete set of genetic instructions, which are essential for the proper functioning of the organism.
Step-by-step explanation:
During DNA replication, the two strands of DNA that make up the double helix separate, and each strand serves as a template for the synthesis of a new complementary strand. The resulting two identical DNA molecules each contain one original strand and one new strand.
DNA replication is essential for cell division because it ensures that each new cell receives a complete set of genetic information. Without DNA replication, the genetic material of the parent cell would be divided unequally among the two daughter cells, resulting in genetic abnormalities and potentially harmful mutations. By accurately replicating DNA, the cell can ensure that each new cell has the same genetic information as the parent cell, allowing for proper cellular function and development.