homologous recombination

[delhanocs]

I'm reading about "homologous recombination",but I can not understand the mechanism of it clearly.Can you help me?thank a lot

[leanbeans]

I think it refers to the recombination that takes place between homologous chromosomes, which will not result in gametes with different alleles for the same trait.
Henceforth, variation among species.

If I'm wrong, someone correct me pls.