What is abiogenesis ?

1 Answer
Apr 19, 2018

Abiogenesis is a scientific theory which states that life arose on Earth via spontaneous natural means, due to conditions present at the time.

Explanation:

Abiogenesis is the natural process of origin of life in which life arises from non-living matter. This transition from non-living to living entities was not a single event but a gradual process of increasing complexity.

The theory emphasises that all life started from inorganic molecules, which recombined in different ways due to energy input. These different forms eventually formed a self replicating molecule, to start creating the basic structures of life, such as cell.

Several very precise experiments have provided sufficient evidence that many of the molecular structures of the cells could be created from inorganic solutions with an input of energy. Polypeptides (proteins) and RNA have both been synthesised in this way.

The classic Miller-Urey experiment and similar research demonstrated that most amino acids, the chemical constituents of the proteins used in all living organisms, can be synthesised from organic compounds under conditions intended to replicate those of the early Earth.