Transposons all have the capacity to move from a donor DNA to a target DNA, with the target DNA being chosen essentially at random and independent of DNA sequence. However, a newly inserted transposon is always flanked by short direct repeats of the targeted sequence for transposon insertion. Describe the differences between non-replicative and replicative transposition and what the consequences for each are for the donor and target DNAs at different stages of the transposition process.