AP BIOLOGY

Detailed explanation-1: -In the Miller-Urey experiment, aspartic acid was synthesized. It is an -amino acid that is used in the biosynthesize of proteins. Thus it proves that inorganic substrates were able to react together and produce organic compounds, thus proving chemical evolution preceded biological evolution.

Detailed explanation-2: -In his May 15, 1953, article in Science, “A Production of Amino Acids Under Possible Primitive Earth Conditions, ” Miller identified just five amino acids: aspartic acid, glycine, alpha-amino-butyric acid, and two versions of alanine. Aspartic acid, glycine and alanine are common constituents of natural proteins.

Detailed explanation-3: -In this brilliant experiment, Miller and Urey demonstrated that electrical sparking a mixture of methane, ammonia, and hydrogen in the presence of water produces amino acids within a variety of organic compounds.

Detailed explanation-4: -The Miller-Urey experiment was a simulation of conditions on the early Earth testing the idea that life, or more specifically organic molecules, could have formed by nothing more than simple chemical reactions.