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Transposons are sequences of DNA that can move around to different positions within the genome of a single cell, a process called transposition. In the process, they can cause mutations and change the amount of DNA in the genome. Transposons are also called “jumping genes”, and are examples of mobile genetic elements. In Bacteria, they are often found on plasmids and can carry various drug or heavy metal resistance genes, or gene clusters that code for degradation of organic pollutants. - wikipedia

Their discovery by Barbara McClintockw early in her career earned her a Nobel prize in 1983. They can be grouped based on their mechanism of transposition.

back to:  conjugation : mobile genetic elements : retrotransposons

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