DNA recombination refers to the process that a DNA segment moves from one DNA molecule to another DNA molecule. The following three types are most commonly observed.
Homologous recombination: It occurs between two homologous DNA molecules, also called DNA crossover.
Site-specific recombination: It occurs at a specific DNA sequence which is present in both non-homologous DNA molecules that may have the recombination.
Transpositional recombination: A mobile element is inserted into a target DNA.
The homologous recombination often occurs during meiosis. Other types of recombination are not specifically related to cell division.