- 1(current)
Q. No.The “Biogenetic Law” was given by :
| 1. | von Baer | 2. | Ernst Haeckel |
| 3. | Hugo de Vries | 4. | Theodosius Dobzhansky |
Subtopic: Concept of Speciation | Concept of Organic Evolution: Evidence |
71%
Level 2: 60%+
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“Organisms that share common descent show underlying embryological patterns on which they build later their adult patterns”. This is :
| 1. | Haeckel’s law | 2. | Baer’s law |
| 3. | Gauss law | 4. | Allen’s rule |
Subtopic: Concept of Organic Evolution: Evidence |
Level 3: 35%-60%
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A thorn of Bougainvillea and a tendril of Cucurbita are an example of :
| 1. | analogous organs | 2. | vestigial organs |
| 3. | homologous organs | 4. | defense organs |
Subtopic: Concept of Organic Evolution: Evidence |
89%
Level 1: 80%+
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The wings of birds, the forelegs of a horse, and the upper limbs of humans are:
| 1. | analogous structures | 2. | homologous structures |
| 3. | vestigial structures | 4. | phylogenetic structures |
Subtopic: Concept of Organic Evolution: Evidence |
79%
Level 2: 60%+
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The biological relationship of the bones in the forelimbs of mammals is an argument in favour of evolution. What will be true for the forelimbs of the different mammals shown below?
| Statement I: | They evolved in a similar environment, rather than inherited from a recent common ancestor. |
| Statement II: | They have a common descent and have evolved from a shared ancestor. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Concept of Organic Evolution: Evidence |
72%
Level 2: 60%+
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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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Industrial melanism is an excellent example of ‘evolution in action’ where the selecting agent is:
| 1. | humans | 2. | toxins from smoke |
| 3. | birds | 4. | tree bark |
Subtopic: Concept of Organic Evolution: Evidence |
Level 3: 35%-60%
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The essence of Darwinian theory about evolution is natural selection. What would be true?
| I: | Nature selects for fitness. |
| II: | Fitness is based on characteristics that are inherited. |
| III: | Fitness is the end result of the ability to adapt and get selected by nature. |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Concept of Organic Evolution: Evidence |
78%
Level 2: 60%+
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The two key concepts of the Darwinian Theory of Evolution are:
| 1. | Branching descent and natural selection |
| 2. | Saltation and Catastrophism |
| 3. | Use and disuse of organs and inheritance of acquired traits |
| 4. | Reproductive isolation and Founder effect |
Subtopic: Concept of Organic Evolution: Evidence |
95%
Level 1: 80%+
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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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- 1(current)
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