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Q. No.Which one of the following experiments suggests that the simplest living organisms could not have originated spontaneously from non-living matter?
| 1. | Larvae could appear in decaying organic matter. |
| 2. | Meat was not spoiled, when heated and kept sealed in a vessel. |
| 3. | Microbes did not appear in stored meat. |
| 4. | Microbes appeared from unsterilized organic matter. |
Subtopic: Other Theories of Origin of Life |
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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 |
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Which statement most accurately reflects what population geneticists refer to as "fitness"?
| 1. | Fitness is the measure of an organism's adaptability to various habitats. |
| 2. | Fitness reflects the number of mates each individual in the population selects. |
| 3. | Fitness refers to the relative health of each individual in the population. |
| 4. | Fitness is a measure of the contribution of a genotype to the gene pool of the next generation. |
Subtopic: Darwin's Theory |
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What was the main point of difference between Darwin and Hugo de Vries regarding evolution?
| 1. | Darwin did not believe in the inheritance of acquired traits while Hugo de Vries did. |
| 2. | Evolution for Darwin was gradual while Hugo de Vries believed mutation caused speciation. |
| 3. | Evolution for Darwin was a stochastic process and for Hugo de Vries was a determinist process. |
| 4. | Fitness for Darwin was reproductive fitness and for Hugo de Vries was physical fitness. |
Subtopic: Darwin's Theory | Hugo De Vries Theory of Evolution | Modern Theory of Evolution | Concept of Organic Evolution: Evidence |
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Consider the given two statements:
| Assertion (A): | Darwin's finches are an often-used textbook example of adaptive radiation. |
| Reason (R): | Darwin's finches are Galapagos endemics famously adapted for a specialized feeding behavior. |
| 1. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
| 2. | Both (A) and (R) are True and the (R) correctly explains (A). |
| 3. | (A) is False but (R) is True. |
| 4. | (A) is True but (R) is False. |
Subtopic: Darwin's Theory |
62%
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Identify the incorrect statement:
| 1. | Nature selects for fitness |
| 2. | There must be a genetic basis for getting selected and to evolve |
| 3. | Evolution is driven by use and disuse of organs |
| 4. | Those who are selected by nature reproduce more and leave more progeny |
Subtopic: Theory of Evolution & Lamarckism | Darwin's Theory | Biological Evolution |
81%
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The bones of forelimbs of different mammals like whale, bat, cheetah and man are remarkably similar in structure, because:
| 1. | these mammals have undergone convergent evolution |
| 2. | they share a common ancestor |
| 3. | they perform the same function |
| 4. | random chance mutations led to development of bones in different groups |
Subtopic: Concept of Organic Evolution: Evidence |
91%
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Consider the given two statements:
| Statement I: | Fossils are primarily found in sedimentary rocks. |
| Statement II: | The layering in sedimentary rocks provides a chronological record of Earth's history, with older fossils found in lower layers and younger fossils found in higher layers. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Palentological Evidences of Evolution |
96%
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Which of the following represents convergent evolution?
| A: | Eye of an octopus and eye of a mammal |
| B: | Flippers of penguins and flippers of dolphin |
1. Only A is correct
2. Only B is correct
3. Both A and B are correct
4. Both A and B are incorrect
Subtopic: Embryological Evidence of Evolution |
82%
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Consider the given two statements:
| Assertion (A): | Fossils provide evidence of the past existence of life and support the theory of evolution. |
| Reason (R): | Fossils show a progression from simple to more complex organisms over geological time periods. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (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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