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The ins and outs of introns

In the nuclei of eukaryotes, pre-messenger RNA is modified by the removal of introns. This produces a mature mRNA of exons. Molecular biologist Robert Spooner and student Tom Wallis explore the origins of introns, and explain how they are removed

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AQA Biological molecules; DNA and protein synthesis

OCR A Nucleotides and nucleic acids; Cellular control

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Fishy ancestors

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Mudskippers

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