Final answer:
During cell division, DNA is passed from parent cells to new cells through DNA replication. This process ensures that each daughter cell receives its own complete set of genetic material. DNA replication occurs during the synthesis phase of the cell cycle and involves the synthesis of new complementary DNA chains.
Step-by-step explanation:
During cell division, DNA is passed from parent cells to new cells through a process called DNA replication. Just before the cell divides, its DNA is copied to create two identical chromosomes. This ensures that each daughter cell receives its own complete set of genetic material.
The process of DNA replication occurs during the synthesis phase, or S phase, of the cell cycle. The two chains of the DNA double helix act as templates for the synthesis of new complementary DNA chains, resulting in two identical DNA molecules.
Overall, DNA replication allows for the transmission of genetic information from generation to generation and ensures that every cell in your body has the same DNA.