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Definition of Retroposon
1. Noun. (genetics) A fragment of DNA inserted into a chromosome following reverse transcription from RNA ¹
¹ Source: wiktionary.com
Medical Definition of Retroposon
1. A transposition of sequences in a DNA that does not originate in the DNA but, in an mRNA that is transcribed back into the genomic DNA by reverse transcription. Origin: retro-+ L. Pono, pp. Positum, to place, + -on (05 Mar 2000)