>>18270022Related IS elements
can sometimes be found in different bacteria. Plasmids also
carry IS elements, which are important in the formation of
high-frequency recombinant (Hfr) strains (see below).
Complex transposons carry genes for specialized functions
such as antibiotic resistance and are flanked by insertion
sequences. Unlike plasmids, transposons do not contain
genetic information necessary for their own replication.
Selection of transposons depends upon their replication as
part of a replicon. Detection or genetic exploitation of
transposons is achieved by selection of the specialized
genetic information (normally, resistance to an antibiotic)
that they carry
