Letter R

Retroposition

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<B>1.</B> Simple backward displacement of a structure or organ such as the uterus.<BR><B>2.</B> In genetics, the integration of a sequence derived from RNA into a DNA genome.

Messenger RNA (mRNA) is reverse-transcribed and reintegrated into the genome.

Retroposition is an important mechanism of gene copying.

It produces a large number of functional genes in the genome and accounts for about 10,000 duplications in the human genome

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