Īfter Miller's death in 2007, scientists examining sealed vials preserved from the original experiments were able to show that there were actually well over 20 different amino acids produced in Miller's original experiments. It was performed in 1953 by Stanley Miller, supervised by Harold Urey at the University of Chicago, and published the following year. It is regarded as a groundbreaking experiment, and the classic experiment investigating abiogenesis. Haldane's hypothesis that the hypothesized conditions on the primitive Earth favored chemical reactions that synthesized more complex organic compounds from simpler inorganic precursors. The experiment used water (H 2O), methane (CH 4), ammonia (NH 3), hydrogen (H 2), and an electric arc (the latter simulating hypothesized lightning).Īt the time, it supported Alexander Oparin's and J. The Miller–Urey experiment (or Miller experiment ) was a chemistry experiment carried out in 1952 that simulated the conditions thought at the time to be present in the atmosphere of the early, prebiotic Earth, in order to test the hypothesis of the chemical origin of life under those conditions.
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