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Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
| 1. | They could separate combinations of molecules from the surroundings |
| 2. | They were able to reproduce |
| 3. | They were partially isolated from the surroundings |
| 4. | They could maintain an internal environment |
Subtopic: Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
Level 4: Below 35%
NEET - 2008
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Subtopic: Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
 63%
Level 2: 60%+
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Identify the correct statement:
| 1. | As the coacervates do not have lipid outer membranes and cannot reproduce, they alone could not have been the precursors of life. |
| 2. | The microspheres could not be induced to constrict but had no large amount of diversity |
| 3. | The earliest life was probably not driven by the solar energy as is seen today |
| 4. | Protobionts cannot separate combination of molecules from the surroundings or maintain an internal environment but are able to reproduce. |
Subtopic: Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
Level 3: 35%-60%
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Which of these are considered most essential in the origin of life?
1. Enzymes
2. Nucleic acids
3. Carbohydrates
4. Proteins
Subtopic: Â Origin of Life: Chemical Evolution: 1 |Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
 72%
Level 2: 60%+
AIIMS - 2001
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Subtopic: Â Origin of Life: Chemical Evolution: 1 |Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
 77%
Level 2: 60%+
AIIMS - 2011
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The mechanism of non cellular aggregates of giant macromolecules to cell with membranous envelop is
1. Natural selection
2. Not known
3. Mutation
4. Recombination
Subtopic: Â Origin of Life: Chemical Evolution: 2 |Â Origin of Life |
 60%
Level 2: 60%+
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For primary abiogenesis, Oparin opined that the primeval Earth atmosphere lacked:
1. Hydrogen
2. Free oxygen
3. Methane
4. Ammonia
1. Hydrogen
2. Free oxygen
3. Methane
4. Ammonia
Subtopic: Â Cosmic Evolution |Â Origin of Life: Chemical Evolution: 1 |Â Origin of Life: Chemical Evolution: 2 |
 93%
Level 1: 80%+
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