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Q. No.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%
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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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Embryological support for evolution, proposed by Ernst Heckel, was disapproved by:
| 1. | Charles Lyell | 2. | Georges Cuvier |
| 3. | Charles Darwin | 4. | von Baer |
Subtopic: Concept of Organic Evolution: Evidence: 3 |
92%
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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%
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Identify the correct statements:
| 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 |
89%
From NCERT
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Which of the following periods in geological time scale is not included in the Palaeozoic era?
1. Silurian
2. Cretaceous
3. Devonian
4. Carboniferous
1. Silurian
2. Cretaceous
3. Devonian
4. Carboniferous
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
74%
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In 1938, a fish caught in South Africa which was thought to be extinct, was a:
| 1. | Jawless fish | 2. | Armoured fish |
| 3. | Lobe finned fish | 4. | Ray finned fish |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
74%
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If we say that the embryos of reptiles, birds, and mammals look very similar during their early stages of development, this would suggest that these organisms:
1. have stopped evolving
2. have a common ancestor
3. live in the same types of environments
4. will get extinct if the environment changes
1. have stopped evolving
2. have a common ancestor
3. live in the same types of environments
4. will get extinct if the environment changes
Subtopic: Embryological Evidence of Evolution |
93%
From NCERT
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The ultimate source of allelic variations in a population is:
1. Recombination
2. Mutation
3. Genetic drift
4. Gene flow
1. Recombination
2. Mutation
3. Genetic drift
4. Gene flow
Subtopic: Population Genetics |
56%
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Consider the given two statements:
| Assertion (A): | One-third of all indigenous inhabitants of Sub-Saharan Africa carry the allele of sickle cell trait. |
| Reason (R): | In areas where malaria is common, there is a survival value in carrying only a single sickle-cell allele (sickle cell trait). |
| 1. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True and the (R) correctly explains (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Genetic Basis of Adaptation |
76%
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