Genetic research. Researcher looking into a petri dish containing genetically modified bacteria containing human DNA (deoxyribonucleic acid). Bacteria divide rapidly and produce many copies of themselves, making them ideal in cloning human DNA for sequencing. DNA sequencing determines the exact order of the four bases that make up a gene, a region of DNA that encodes how every cell in the body works. Photographed at the AFM (French Muscular Dystrophy Association), Evry, France.
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