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Q. No.Some of the marsupials of Australia resemble equivalent placental mammals that live in similar habitats on other continents. This is an example of:
1. Convergent evolution 2. Divergent evolution 3. Saltatory evolution 4. Adaptive radiation
Subtopic: Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
68%
Level 2: 60%+
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What is genetic equilibrium?
| 1. | When all the alleles of a gene are present in a population in equal frequencies |
| 2. | When the number of heterozygotes in a population is equal to the number of either of the homozygote. |
| 3. | When the number of heterozygotes in a population is equal to the number of either of the homozygote. |
| 4. | When the frequency of particular genes or alleles remains constant in a population through generations |
Subtopic: Hardy Weinberg Law: 1 | Hardy Weinberg Law: 2 |
80%
Level 1: 80%+
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All the following are examples of analogous organs except:
| 1. | Thorn and tendrils of Bougainvillea and Cucurbita |
| 2. | Sweet potato and Potato |
| 3. | Flippers of Penguins and Dolphins |
| 4. | Eye of the Octopus and of Mammals |
Subtopic: Natural Selection |
88%
Level 1: 80%+
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Genetic drift is :
| 1. | random changes in gene frequency in a population |
| 2. | generational fluctuations in gene frequencies that produce no effect |
| 3. | changes due to interbreeding with other species populations |
| 4. | the effect of mutations as they spread through neighbouring populations |
Subtopic: Hardy Weinberg Law |
84%
Level 1: 80%+
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Which one of the following would cause the Hardy-Weinberg principle to be inaccurate?
| 1. | The size of the population is very large. |
| 2. | Individuals mate with one another at random. |
| 3. | Natural selection is present. |
| 4. | There is no source of new copies of alleles from outside the population. |
Subtopic: Hardy Weinberg Law: 1 | Hardy Weinberg Law: 2 |
59%
Level 3: 35%-60%
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The theory of spontaneous generation stated that:
| 1. | life arose from living forms only |
| 2. | life can arise from both living and non-living |
| 3. | life can arise from non-living things only |
| 4. | life arises spontaneously, neither from the living nor from the non-living |
Subtopic: Other Theories of Origin of Life |
65%
Level 2: 60%+
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Palaeontological evidence for evolution refers to the:
| 1. | development of the embryo | 2. | homologous organs |
| 3. | fossils | 4. | analogous organs |
Subtopic: Palentological Evidences of Evolution |
92%
Level 1: 80%+
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The appearance of antibiotic-resistant bacteria is an example of:
1. adaptive radiation
2. transduction
3. pre-existing variation in the population
4. divergent evolution
Subtopic: Theory of Evolution & Lamarckism |
63%
Level 2: 60%+
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Fossils are generally found in:
1. Sedimentary rocks
2. Igneous rocks
3. Metamorphic rocks
4. Any type of rock
1. Sedimentary rocks
2. Igneous rocks
3. Metamorphic rocks
4. Any type of rock
Subtopic: Palentological Evidences of Evolution |
92%
Level 1: 80%+
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Which type of selection explains industrial melanism observed in moth, Biston betularia?
| 1. | Stabilising | 2. | Directional |
| 3. | Disruptive | 4. | Artificial |
Subtopic: Concept of Organic Evolution: Evidence |
76%
Level 2: 60%+
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