In 1920, Alixander Operin and J.B.S Harold said, organic molecules or amino acids were formed by the friction of methane (CH4), ammonia (NH3), hydrogen (H2) and water (H2O) in the atmosphere.
In 1953, Stanley Miller and Harold Urey produced amino acids in the laboratory by passing an electric current through a mixture of methane, ammonia, hydrogen and water.
Many people think that the first life is RNA. Proteins are then made from RNA. This idea is known as the RNA-World hypothesis.
- Amino acids were formed by the friction of atmospheric methane (CH4), ammonia (NH3), hydrogen (H2) and water (H2O) due to lightening.
- Carbon compounds and polymers were formed from amino acids in the deep sea.
- A phospholipid bilayer was then formed with the polymer.
- RNA was created from polymers.
- Proteins were created from RNA (RNA-World).
- Early cells were created from proteins.
- The nucleus of the primitive cell is well formed and enveloped by the cell membrane to become a true cell.
- Aerobic bacteria entered true cells, transformed into mitochondria, and evolved into animal cells.
- Photosynthetic bacteria entered animal cells, transformed into chloroplasts, and evolved into plant cells.
Primordial cells are created from the original source. The original cell’s DNA becomes the nucleus and forms the true cell. Aerobic bacteria enter true cells and transform into mitochondria and form animal cells. Photosynthetic bacteria enter animal cells and transform into chloroplasts and form plant cells. Endosymbiosis is the process by which bacteria enter and survive in nucleated cells.