AJ PHOTO / SCIENCE PHOTO LIBRARY AJ PHOTO / SCIENCE PHOTO LIBRARY
DNA extraction. Image 8 of 10. Frozen test tubes of white blood cells, which have been removed from whole blood samples. DNA (deoxyribonucleic acid) will be extracted from these cells at a later date. Photographed at Genethon research laboratory, France. For a sequence of images showing DNA extraction, see G210/976-985.
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