What is difference between separation and decatenation of DNA?

Separation of DNA refers to the process of unwinding and separating the two strands of the double helix, typically during replication or transcription. Decatenation, on the other hand, involves the unlinking of intertwined DNA molecules, such as during cell division when daughter chromosomes must be separated. Both processes are essential for proper DNA function, but they target different structural challenges within the DNA molecule.