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Composite transposon
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<p>A composite transposon is similar in function to <a href="/facts/Simple_transposon/u41ozPq6">simple transposons</a> and <a href="/facts/Insertion_sequence/IvIjr9Yt">insertion sequence (IS) elements</a> in that it has protein coding <a href="/facts/DNA/nB89Iauz">DNA</a> segments flanked by inverted, repeated sequences that can be recognized by transposase enzymes. A composite <a href="/facts/Transposon/WbVMhuWR">transposon</a>, however, is flanked by two separate IS elements which may or may not be exact replicas. Instead of each IS element moving separately, the entire length of DNA spanning from one IS element to the other is transposed as one complete unit. Composite transposons will also often carry one or more genes conferring <a href="/facts/Antimicrobial_resistance/jsbAywgx">antibiotic resistance</a>. </p>