chemical evolution

Cultural  

1. The formation of complex organic molecules (see also organic molecule) from simpler inorganic molecules through chemical reactions in the oceans during the early history of the Earth; the first step in the development of life on this planet. The period of chemical evolution lasted less than a billion years.

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Some scientists believe that all or most of the Earth's original organic molecules were created in space and were brought to the Earth's oceans by meteorites.

Many of the steps in chemical evolution can now be reproduced in the laboratory.

Example Sentences

Moving beyond existing methods limited by tradeoffs between speed and accuracy, the team developed a step-by-step, "directed chemical evolution" process.

From Science Daily

"Now we can look for more analogs in the Milky Way, that are much brighter, and study their chemical evolution without having to chase these extremely faint stars," Frebel says.

From Science Daily

Studies of the chemistry at water droplet interfaces offer new insights into the early stages of life's chemical evolution.

From Science Daily

The discovery “opens up vast and fundamentally new avenues of pursuit for early chemical evolution”, says Bill Martin, who studies molecular evolution at Heinrich Heine University Düsseldorf in Germany.

From Scientific American

This approach has been extended by biochemist Moran Frenkel-Pinter at the NSF–NASA Center for Chemical Evolution in Atlanta, Georgia, and her colleagues.

From Scientific American