Question

Who proposed theory of origin of life?

Answer 1

The modern theory of the origin of life was proposed by Russian biochemist AI Oparin and supported by a biologist JBD Haldane. This theory is also known as the Abiogenic theory or Naturalistic theory. According to this theory, life originated on Earth after a long period of 'abiogenic molecular evolution'. Origin of life on Earth took place as a result of physiochemical changes that brought about a gradual evolution of inorganic and organic compounds called chemical evolution and thereafter biological evolution. This theory was supported experimentally by Miller and Urey and Sydney W Fox. They found that if a dry mixture of amino acids is heated, polypeptide molecules are synthesised. In the same way, polysaccharides can be synthesised by simple sugars and fats by fatty acids and glycerol.

Oparin wrote a book "Origin of life" in 1936.