The 3' end of the displaced strand is degraded by RecBCD exonuclease activity. Nonreciprocal recombination - incorporation into E. coli chromosome. Endonucleases cut to free the new duplex. Ligase seals the nicks in the new duplex.
Recombination can produce a hybrid DNA with different sequences in the two strands of the duplex.
Strands separate unchanged at next cell division and direct synthesis of new strand so that one parent hybrid DNA molecule can produce two different DNA duplexes.