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white blood cells, discovered and isolated a new molecule that he named nuclein from the cell nucleus, which would ultimately be the first discovery of the molecule DNA that was later determined to be the molecular basis of life. He determined it was composed of hydrogen, oxygen, nitrogen and phosphorus. Biochemist Albrecht Kossel identified nuclein as a nucleic acid and provided its name deoxyribonucleic acid (DNA). He continued to build on that by isolating the basic

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