MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY
Genetically engineered tomato plant growing in a sterile environment. The plant has had a gene that prevents its tomatoes from developing seeds added to its genome. This was achieved by adding the gene (iaaM) to bacterial cells in a plasmid, a small circle of DNA (deoxyribonucleic acid). The bacteria were then allowed to infect tomato plant cells. The cells that had taken up the plasmid, or been transformed, were then cultured and grown into seedlings. Photographed at the University of Verona, Italy.
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