Final answer:
DNA replication produces two identical copies of the DNA molecule, known as sister chromatids, which are held together until they separate during mitosis. This ensures that each daughter cell receives an identical copy of the DNA.
Step-by-step explanation:
DNA replication is a process that occurs during the synthesis phase (S phase) of the cell cycle, before the cell enters mitosis. It produces two identical copies of the DNA molecule, known as sister chromatids, which are held together at the centromere by cohesin proteins. These sister chromatids eventually separate during mitosis, ensuring that each daughter cell receives an identical copy of the DNA. The replicated DNA forms chromosomes made up of two linked sister chromatids.