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Stanley Miller in 1999, posed with an apparatus like that used in the original experiment. At the time of the Miller–Urey experiment, Harold Urey was a Professor of Chemistry at the University of Chicago who had a well-renowned career, including receiving the Nobel Prize in Chemistry in 1934 for his isolation of deuterium [21] and leading ...
Date: 17 December 2013: Source: Miller-Urey experiment: Author: Courtney Harrington: Permission (Reusing this file)This work by The Community College Consortium for Bioscience Credentials is licensed under a Creative Commons Attribution 3.0 Unported License.
Urey or Miller was afraid that specks of fly excrement might be the source of the amino acids (or was so chided by classmates). Excrement was not the source; the result was a demonstration that "organic" chemical compounds could be produced by purely inorganic processes. Miller earned a doctorate in 1954, and a long-lasting reputation. [5]
1953 – Stanley L. Miller & Harold C. Urey: Miller–Urey experiment demonstrates that organic compounds can arise spontaneously from inorganic ones. 1955 – Clyde L. Cowan and Frederick Reines confirm the existence of the neutrino in the neutrino experiment. 1958 – Meselson–Stahl experiment proves that DNA replication is semiconservative.
The Miller–Urey experiment used a highly reducing mixture of gases—methane, ammonia, and hydrogen, as well as water vapor—to form simple organic monomers such as amino acids. [37] The mixture of gases was cycled through an apparatus that delivered electrical sparks to the mixture.
The hypothesis gained some empirical support in 1953 with the classic Miller–Urey experiment. Since then, the primordial soup theory (Oparin–Haldane hypothesis) has become the foundation in the study of abiogenesis. [88] [89] [90]
Origin of life – hierarchy of life – Miller–Urey experiment; Macroevolution: adaptive radiation – convergent evolution – extinction – mass extinction – fossil – taphonomy – geologic time – plate tectonics – continental drift – vicariance – Gondwana – Pangaea – endosymbiosis
Urey, along with his student Stanley Miller, may be best remembered for the renowned Miller-Urey experiment, which shows that a mixture of ammonia, methane and hydrogen, when exposed to ultraviolet radiation and water, can interact to form amino acids, the "building blocks" of terrestrial life.