Question

The theory of chemical evolution was based on the experiment of
A)Louis Pasteur
B)Leeuwenhoek
C)Miller and Urey
D)Darwin

Answer 1

Hint: The chemical theory of evolution is the modern theory of evolution which states that life originated on the earth by means of slow evolution of the non-living matter. The chemical evolution leads to wide differences in the molecular concentrations.

Complete answer:
To solve this question, we must know about the theory of chemical evolution.
The theory of chemical evolution says that the complex organic molecules were formed from the simple molecules by the chemical reactions that occurred in the oceans during pre-historic age. This was the first step in the development of life on earth.

This theory was based on the experiment done by Miller and Urey. His experiment used methane, water, ammonia and hydrogen. They found out that under the reducing conditions same as that of the early earth, organic molecules could be produced.
Louis Pasteur-He performed the experiment on pasteurisation.
Leeuwenhoek- He developed a microscope.
Darwin-He proposed the theory of natural evolution. He proposed that the species that have evolved over time from common ancestors. The changes both physical and behavioural are inheritable.

Hence, the correct answer is option (C)

Note: The end products of his experiment were amino acids, aldehydes etc. These molecules are the essential precursors of nucleic acid. His experiment was successful in synthesizing organic complex molecules from the simple molecules.