Question

Which of the following is the correct sequence of events in the origin of life based on theory of chemical evolution?
I. Formation of protobionts
II. Synthesis of simple organic compounds
III. Synthesis of complex organic compounds
IV. Formation of nucleic acids as genetic material

• A. II $\Rightarrow$ III $\Rightarrow$ IV $\Rightarrow$ I
• B. I $\Rightarrow$ II $\Rightarrow$ III $\Rightarrow$ IV
• C. I $\Rightarrow$ III $\Rightarrow$ II $\Rightarrow$ IV
• D. II $\Rightarrow$ III $\Rightarrow$ I $\Rightarrow$ IV

Answer 1

The correct option is A II $\Rightarrow$ III $\Rightarrow$ IV $\Rightarrow$ I

In the theory of chemical evolution, it is assumed that inorganic molecules combined to form simple organic molecules which further combined to form complex organic molecules over time. These molecules are interacted and aggregated to form coacervates. Nucleic acid took control of coacervates which led to the establishment of nucleic acid as its genetic material. Finally, the first living systems, protobionts were formed.