AJ PHOTO / SCIENCE PHOTO LIBRARY AJ PHOTO / SCIENCE PHOTO LIBRARY
DNA extraction. Image 9 of 10. Test tube containing a sample of human DNA (deoxyribonucleic acid). The DNA has been extracted from white blood cells. The DNA was precipitated out in phenol and resembles a white floating "medusa". Photographed at the Genethon research laboratory, France. For a sequence of images showing DNA extraction, see G210/976-985.
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