How Life Evolved on Earth

Origin of Life

ACCA-Gly was the primitive adapter, linking amino acid polymerization to RNA sequence.

ACCA-Gly was attached to RNAs to promote polyglycine synthesis.

Polyglycine was the main aggregator for macromolecules, metabolism and protocells.

tRNA initially evolved to synthesize polyglycine.

tRNA diversified to encode 20 amino acids within the genetic code.

If you get a genetic code, you get life.

Chemical Evolution of Life on Earth

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