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Q. No.Hugo deVries brought forth the idea of mutations while working on:
1. Evening primrose
2. Fruit fly
3. Coenorhabditis elegans
4. Maize
Subtopic: Hugo De Vries Theory of Evolution |
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Level 1: 80%+
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Disturbance in genetic equilibrium, or Hardy-Weinberg equilibrium, is interpreted as resulting in:
1. adaptive radiation
2. evolution
3. saltation
4. speciation
1. adaptive radiation
2. evolution
3. saltation
4. speciation
Subtopic: Hardy Weinberg Law: 2 |
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Level 2: 60%+
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Five factors are known to affect Hardy-Weinberg equilibrium. Which of the following is not one of them?
1. gene migration or gene flow
2. genetic drift
3. mutation
4. random mating
1. gene migration or gene flow
2. genetic drift
3. mutation
4. random mating
Subtopic: Hardy Weinberg Law: 2 |
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Level 1: 80%+
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A process in which heritable variations enabling better survival are enabled to reproduce and leave greater
number of progeny is called as:
1. Evolution
2. Natural selection
3. Speciation
4. Gene flow
number of progeny is called as:
1. Evolution
2. Natural selection
3. Speciation
4. Gene flow
Subtopic: Natural Selection |
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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 |
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Level 2: 60%+
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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 |
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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 |
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Level 1: 80%+
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Over time, all the following characters in the lineage of horse have shown an increasing trend except:
1. digit number
2. body size
3. tooth length
4. tooth size
1. digit number
2. body size
3. tooth length
4. tooth size
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
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Consider the given two statements:
| Assertion(A): | The presence of gill slits and a tail in the early stages of development of an embryo indicates that it can develop only as a fish. |
| Reason(R): | Embryos pass through the adult stages of other animals. |
| 1. | Both (A) and (R) are true but (R) does not correctly explain (A). |
| 2. | Both (A) and (R) are true and (R) correctly explains (A). |
| 3. | (A) is false and (R) is also false. |
| 4. | (A) is true but (R) is false. |
Subtopic: Embryological Evidence of Evolution |
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Level 2: 60%+
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Consider the given two statements:
| Assertion (A): | The hemoglobin gene is less similar between humans and gorilla than between humans and chimpanzees. |
| Reason (R): | Humans and chimpanzees have a more recent common ancestor than human and gorilla. |
| 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 and (R) is also False. |
| 4. | (A) is True but (R) is False. |
Subtopic: Evolution Prior to Ape Man: 2 |
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Level 2: 60%+
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