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Confused! kindly explain, Which of the following is the correct sequence of events in the origin of life?I. Formation of protobiontsII. Synthesis of organic monomersIII. Synthesis of organic polymersIV. Formation of DNA-based genetic systems

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

  • Option 1)

    I, II, III, IV

  • Option 2)

    I, iII, II, IV

  • Option 3)

    II, III, I, IV

  • Option 4)

    II, III, IV, I

 
Answers (1)
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As discussed in

Formation of inorganic molecules -

High temperature of early earth prevented the atoms to form molecules. As the earth cooled, free atoms came together and formed inorganic molecules.

- wherein

The atoms of lighter elements (hydrogen, oxygen, nitrogen and carbon) react to form the first molecules.

 

 and

Formation of complex organic compounds -

The small, simple organic molecules came together and combined to form large, complex biological molecules like large sugar molecules, polypeptides and proteins, fats and nucleic acids. Heat of the sun provided energy for the formation of these compounds.

- wherein

The formation of protein molecules can be considered the landmark in the origin of life.

 

 


Option 1)

I, II, III, IV

This solution is incorrect 

Option 2)

I, iII, II, IV

This solution is incorrect 

Option 3)

II, III, I, IV

This solution is correct 

Option 4)

II, III, IV, I

This solution is incorrect 

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