A transposition of sequences in a DNA that does not originate in the DNA but rather in an mRNA that is transcribed back into the genomic DNA by reverse transcription. [retro- + L. pono, pp. positum, to place, + -on]

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ret·ro·po·son -'pō-.zän n RETROTRANSPOSON

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ret·ro·po·son (ret″ro-poґzon) retrotransposon.

Medical dictionary. 2011.

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