Question

Which of the following is the correct sequence of events in the origin of life ? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems

• A. I, II, III, IV
• B. I, III, II, IV
• C. II, III, I, IV
• D. II, III, IV, I

Answer 1

The Correct Option is C

Origin of Life: Correct Sequence of Events 

The correct sequence of events in the origin of life is as follows:

• I: Synthesis of organic monomers - This is the first step, where simple organic molecules, such as amino acids and nucleotides, are formed. These monomers are the building blocks of life.
• II: Synthesis of organic polymers - The organic monomers formed in the previous step combine to form polymers, such as proteins and nucleic acids (RNA and DNA), which are essential for life processes.
• III: Formation of protobionts - Protobionts are simple, cell-like structures that are thought to be precursors to actual living cells. These structures can exhibit some characteristics of life, such as metabolism and reproduction, but are not fully living cells.
• IV: Formation of DNA-based genetic systems - In the final step, the protobionts develop a genetic system based on DNA, which allows for inheritance and more complex biological functions, marking the transition to true living organisms.

Conclusion:

The correct sequence of events in the origin of life is: II, III, I, IV