During DNA transposition by the cut-and-paste mechanism, the transposase cuts the two strands of the target site DNA several nucleotides apart. Cellular repair enzymes fill in these overhangs, resulting in the formation of During DNA transposition by the cut-and-paste mechanism, the transposase cuts the two strands of the target site DNA several nucleotides apart. Cellular repair enzymes fill in these overhangs, resulting in the formation of the synaptic complex. a poly-A sequence. target site direct repeats. long terminal repeats. inverted terminal repeats.