6. Molecular Evolution in Deep Subterranean Regions

The mechanisms by which the selected molecules evolved resulting in macromolecules are discussed. However, we must first appreciate in detail the irrationality of the a priori assumption, “an ancient sea was the mother of life,” and consequently dispel its myth. In place of the ancient sea belief, a hypothesis, “molecular evolution in deep subterranean regions,” will be proposed. Under this hypothesis, organic molecules naturally polymerize to macromolecules beneath deep sediments on the ocean floor, and we argue that molecular evolution is a component of the geological phenomena of Earth’s history. The results of high pressure experiments to confirm the “molecular evolution in deep subterranean regions” strongly support the hypothesis. In the final section of this chapter, the origin of homochirality of bioorganic molecule will be discussed from the point of view of “Molecular evolution in deep subterranean regions.”