- 1(current)
Q. No.Panspermia, an idea that is still a favourite for some astronomers, means :
| 1. | Creation of life from dead and decaying matter |
| 2. | Creation of life from chemicals |
| 3. | Origin of sperm in human testes |
| 4. | Transfer of spores as unit of life from other planets of Earth |
Subtopic: Origin of Life |
87%
From NCERT
NEET - 2022
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In present times, the origin of life is not possible from inorganic compounds due to:
1. Non-availability of raw material
2. High concentration of O2 in the atmosphere
3. Decrease in temperature
4. Excess of pollution
Subtopic: Origin of Life |
64%
From NCERT
AIPMT - 1998
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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: Origin of Life: Chemical Evolution: 1 | Origin of Life: Chemical Evolution: 2 | Origin of Life |
AIPMT - 2008
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Subtopic: Origin of Life |
76%
AIPMT - 2001
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After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
Subtopic: Examples of Chemical Evolution | Origin of Life |
78%
From NCERT
NEET - 2020
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The concept of chemical evolution is based on:
| 1. | crystallization of chemicals |
| 2. | interaction of water, air, and clay under intense heat |
| 3. | effect of solar radiation on chemicals |
| 4. | possible origin of life by a combination of chemicals under suitable environmental conditions |
Subtopic: Origin of Life: Chemical Evolution: 1 | Origin of Life: Chemical Evolution: 2 | Origin of Life |
89%
From NCERT
AIPMT - 2007
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- 1(current)
Q. No.
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