1.

Whose theory was put to test by Miller Urey and what was the theory? How did their experiment proved the abiotic origin of life on earth?

Answer»

Oparin and Haldane proposed that the first life form could have come from the „ nonliving organic molecules like RNA, protein etc.

The orgaine molecules must have been produced by chemical evolution, i.e. formation of divers organic molecules from inorganic constituents.

The condition, of the earth that favoured chemical origin were

(i) very high temperature 

(ii) volcanic storms

(iii) Reducing atmosphere that contained methane, ammonia and water vapour. 

  • Energy must have been produced by U-V radiation and lightning.
  • Analysis of the products of their experiment showed the presence of amino acids which help to form proteins.


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