Q. No.Oparin of Russia and Haldane of England proposed that:
I:
The first form of life could have come from pre-existing non-living organic molecules (e.g. RNA, protein, etc.)
II:
The formation of life was preceded by chemical evolution, i.e., the formation of diverse organic molecules from inorganic constituents.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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| I: | Fitness, according to Darwin, refers ultimately and only to reproductive fitness. |
| II: | Those who are a better fit in an environment, leave more progeny than others. |
| 1. | Both Statement I and Statement II are correct and Statement II explains Statement I. |
| 2. | Statement I is correct and Statement II is incorrect. |
| 3. | Statement I is incorrect and Statement II is correct. |
| 4. | Both Statement I and Statement II are correct but Statement II does not explain Statement I. |
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| 1. | Georges Cuvier | 2. | Lyell |
| 3. | Hugo de Vries | 4. | Alfred Russell Wallace |
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I: Nature selects for fitness.
II: Fitness is based on characteristics that are inherited.
III: Fitness is the end result of the ability to adapt and get selected by nature.
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
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| 1. | Branching descent and natural selection |
| 2. | Saltation and Catastrophism |
| 3. | Use and disuse of organs and inheritance of acquired traits |
| 4. | Reproductive isolation and Founder effect |
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| 1. | continuous variations | 2. | mutations |
| 3. | genetic drift | 4. | genetic death |
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| 1. | 20 billion years back | 2. | 10 billion years back |
| 3. | 4.5 billion years back | 4. | 3.0 billion years back |
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| 1. | Neanderthals lived between 1,50,000 and 1,00,000 years back. |
| 2. | Modern Homo sapiens arose between 75000 and 10000 years ago. |
| 3. | Pre-historic cave art developed around 18000 years ago. |
| 4. | Agriculture came around 10000 years ago |
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1. Cranial capacity of around 1400 cc
2. Lived in East and Central Africa
3. Used hides to protect their bodies
4. Buried their dead
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