Transgenic tomato genome sequencing. Eppendorf tube containing a sample of DNA in front of an electrophoresis gel to sequence the genome of a tomato that has been genetically modified to be seedless. The bands on the film show the position of the four nucleotide bases from DNA (deoxyribonucleic acid). The sequence of bases make up genes, which encode an organism's genetic information. A gene has been inserted into the tomato plant to prevent the development of seeds. Photographed at the University of Verona, Italy.
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