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ART FOR SCIENCE / SCIENCE PHOTO LIBRARY ART FOR SCIENCE / SCIENCE PHOTO LIBRARY
Gene splicing. Diagram showing eight stages involved in gene splicing by a complex known as a spliceosome. The process (top) involves removing a fragment known as an intron (orange) from a newly formed nucleic acid strand and joining together the two exons either side (red). This process occurs during the replication of DNA and other gene manipulation processes. The nucleotides are shown across top, while more detailed diagrams are shown below. These shown the role played by snRNP and snRNA (small nuclear ribonucleoproteins and small nuclear ribonucleic acid). The spliced gene is at lower left, with the removed intron (yellow loop).
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