Question

Who first conducted experiment on evolution to prove biochemical origin of life?

• A. Miller and Urey
• B. Darwin
• C. Lamarck
• D. Weismann

Answer 1

The correct option is A Miller and Urey

Miller and Urey first conducted an experiment on evolution to prove the biochemical origin of life. Based on the hypothesis proposed by Oparin and Haldane, they provided an experimental evidence of the chemical evolution in 1953 in a laboratory set-up. They created the same conditions as described by Oparin and Haldane on a laboratory scale. He sealed the gases $C{H}_4$, $H_2$, $N{H}_3$ and water vapour at 800 ${}^0$C in a closed flask and made an arrangement of two electrodes in this flask. The electrodes created the electric discharge which provided the energy for the chemical reactions between these gases. A condenser was attached to condense the gaseous compounds formed in the flask into the liquid form. After some days, he observed the formation of amino acids like glycine, alanine and aspartic acid, in the flask from inorganic compounds ($C{H}_4$, $H_2$, $N{H}_3$, $H_{2}O$).