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Q. No.Within the Australian continent marsupials have undergone:
1.
disruptive selection
2.
adaptive radiation
3.
extinction
4.
rapid speciation due to sudden large scale mutations
Subtopic: Genetic Basis of Adaptation |
94%
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Evolution by anthropogenic action:
| 1. | is a determinist process. |
| 2. | only leads to evolution of species that are useful to humans. |
| 3. | usually is faster than the natural process. |
| 4. | is not at all related to mutations |
Subtopic: Palentological Evidences of Evolution |
61%
From NCERT
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Consider the given two statements
| Assertion (A): | Dark melanic peppered moth survive better in polluted environments. |
| Reason (R): | In polluted areas, dark melanic moths are able to camouflage themselves. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Palentological Evidences of Evolution |
94%
From NCERT
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Consider the given two statements:
| Assertion(A): | Homology implies divergent evolution. |
| Reason(R): | Homologous organs are organs which do similar jobs in two taxa that were not present in their most recent common ancestor but rather evolved separately. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Palentological Evidences of Evolution |
79%
From NCERT
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Embryological support for evolution, proposed by Ernst Heckel, was disapproved by:
1. Charles Lyell
2. Georges Cuvier
3. Charles Darwin
4. von Baer
1. Charles Lyell
2. Georges Cuvier
3. Charles Darwin
4. von Baer
Subtopic: Concept of Organic Evolution: Evidence: 3 |
93%
From NCERT
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Consider the given two statements:
| Assertion (A): | Only a small percentage of life-forms can be expected to be represented in fossil discoveries. |
| Reason (R): | Organisms are only rarely preserved as fossils in the best of circumstances, and only a fraction of such fossils have been discovered. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Palentological Evidences of Evolution |
82%
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How many of the given statements regarding gradual evolution of life forms as explained by Darwin are correct?
1. 1
2. 2
3. 3
4. 4
| I: | Any population has built in variation in characteristics. |
| II: | Those characteristics which enable some to survive better in natural conditions (climate, food, physical factors, etc.) would outbreed others that are less-endowed to survive under such natural conditions. |
| III: | The fitness, according to Darwin, refers ultimately and only to reproductive fitness. |
| IV: | Those who are better fit in an environment, leave more progeny than others. |
1. 1
2. 2
3. 3
4. 4
Subtopic: Additional Theories of Darwin |
79%
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Regarding Miller and Urey experiment:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | They created similar conditions in a laboratory scale as was proposed for primeval Earth atmosphere by Oparin. |
| II: | They created electric discharge in a closed flask containing CH4, O2, NH3 and water vapour at 80°C. |
| III: | They observed formation of amino acids. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Urey & Miller Experiment |
86%
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The hypothesis of ‘spontaneous generation, was finally disproved experimentally by:
1. Fransesco Redi
2. Louis Pasteur
3. Spallanzani
4. van Helmont
1. Fransesco Redi
2. Louis Pasteur
3. Spallanzani
4. van Helmont
Subtopic: Definition & Types of Evolution |
94%
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The connotations of the special creation theory regarding the origin of life do not include:
| 1. | All living organisms (species or types) that we see today were created as such. |
| 2. | The diversity was always the same since creation and will be the same in future also. |
| 3. | Earth is about 4000 years old. |
| 4. | Living organisms develop from non-living matter. |
Subtopic: Origin of Life |
80%
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