Question

State in short about Urey n Miller's experiment.... Related to chemical evolution

Answer 1

The Miller–Urey experiment[1] (or Miller experiment)[2] was a chemical experiment that simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those conditions. The experiment supported Alexander Oparin's and J. B. S. Haldane's hypothesis that putative conditions on the primitive Earth favoured chemical reactions that synthesized more complex organic compounds from simpler inorganic precursors. Considered to be the classic experiment investigating abiogenesis, it was conducted in 1952[3] by Stanley Miller, with assistance from Harold Urey, at the University of Chicago and later the University of California, San Diego and published the following year.[4][5][6]

After 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. That is considerably more than what Miller originally reported, and more than the 20 that naturally occur in life.[7] More recent evidence suggests that Earth's original atmosphere might have had a composition different from the gas used in the Miller experiment, but prebiotic experiments continue to produce racemic mixtures of simple to complex compounds under varying conditions.

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Answer 2

Urey and Miller were two scientists who believed in chemical evolution of life.

They gave the experimental poof of the Oparin and Haldane's concept of chemical evolution of life. They boiled water in a flask at 800°C, and it was connected to other flask where electric charge was produced (75000volts), and it lead to the formation of aspartic acid, Alanine and Glycine, which ensures that life originated by chemical evolution.