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Q. No.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 |
78%
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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 |
81%
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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 |
78%
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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%
From NCERT
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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 |
81%
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Doing extensive fieldwork in the Malay Archipelago, which scientist independently conceived the theory of evolution through natural selection?
1. Alfred Russel Wallace
2. Charles Lyell
3. Georges Cuvier
4. Jean Baptiste Lamarck
1. Alfred Russel Wallace
2. Charles Lyell
3. Georges Cuvier
4. Jean Baptiste Lamarck
Subtopic: Summary of Darwin's Theory |
92%
From NCERT
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A study of fossils in different sedimentary layers:
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: | indicates the geological period in which they existed. |
| II: | shows that life-forms varied over time. |
| III: | shows that certain life-forms are restricted to certain geological time-spans. |
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
Subtopic: Palentological Evidences of Evolution |
90%
From NCERT
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Identify the correct statements:
1. a and b only
2. c and d only
3. a and c only
4. b and d only
| a. | Homology indicates common ancestry. |
| b. | Sweet potato and potato are examples for homology. |
| c. | Analogous structures are a result of convergent evolution. |
| d. | Vertebrate hearts or brains are analogous structures. |
1. a and b only
2. c and d only
3. a and c only
4. b and d only
Subtopic: Palentological Evidences of Evolution |
88%
From NCERT
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