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Get Answers to all your Questions
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)
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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