n a segment of DNA that can become integrated at many different sites along a chromosome (especially a segment of bacterial DNA that can be translocated as a whole)
Why our prehistoric, parasitic 'jumping' genes don't send us into meltdown A new study reveals for the first time how the movement and duplication of segments of DNA known as transposons, is regulated. This prevents a genomic meltdown, and instead enables transposons to live in harmony with their hosts — including humans.
June 21, 2013 - Science Daily