The longer DNA segments in the structure get exchanged after the branch migration. After this, the branch point gets cleaved. The cleavage across the branch point leads to an important event. It brings back the resolution of the structure to its original form. It is known as the chi form. It involves the cuts made in either of the orientation. There are two key types of cuts targeting the chi form. One type of cut starts from the left and cleaves towards the right (Left-Right). The other type of cut starts from the above and goes on cleaving while traveling downwards (up-down). The left-right cut gives rise to the horizontal resolution. The up-down cut gives rise to reciprocal strand exchange or vertical resolution. The left-right cut gives rise to the transfer of a short segment of the polynucleotide. It corresponds to the distance migrated by the branch. In the reciprocal exchange, the double-stranded DNA gets transferred between the two molecules. End of one molecule exchanges with the end of the other molecule. It is a typical feature of crossing over.