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Q. No.The basic tenets of evolution by natural selection as defined by Darwin do not include:
1. More individuals are produced each generation than can survive.
2. Phenotypic variation exists among individuals and the variation is heritable.
3. Those individuals with heritable traits better suited to the environment will survive.
4. The evolutionarily significant variations in the population arise due to mutations.
Subtopic: Darwin's Theory |
56%
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Consider the two statements:
I. Birds and bats have homologous limbs.
II. They are both ultimately derived from terrestrial tetrapods.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is incorrect but II is correct
4. I is correct but II is incorrect
I. Birds and bats have homologous limbs.
II. They are both ultimately derived from terrestrial tetrapods.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is incorrect but II is correct
4. I is correct but II is incorrect
Subtopic: Concept of Organic Evolution: Evidence |
53%
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Examples of convergent evolution will include:
I. Opposable thumbs in primates and giant pandas.
II. Eye of cephalopods and vertebrates.
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I. Opposable thumbs in primates and giant pandas.
II. Eye of cephalopods and vertebrates.
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Definition & Types of Evolution |
57%
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The statement “Embryos pass through successive stages that represent the adult forms of less complex organisms in the course of development” can be equated with:
| 1. | Recapitulation theory | 2. | Baer’s law |
| 3. | Descent with modification | 4. | Punctuated equilibrium |
Subtopic: Embryological Evidence of Evolution |
61%
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Sequence comparisons indicate that the DNA of which of the following living apes is most similar to human DNA?
1. Hoolock Gibbon
2. Orangutan
3. Gorilla
4. Chimpanzee
1. Hoolock Gibbon
2. Orangutan
3. Gorilla
4. Chimpanzee
Subtopic: Evolution of Homo Sapiens |
77%
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With the passing of stringent laws and pollution control measures in Britain, there has been a decline in the frequency of melanic form of the Peppered moth. The most likely cause for this observation will be:
1. industrial pollutants turned the moths black
2. the selection pressure on the melanic and the non-melanic forms has reversed
3. genetic drift
4. assortative mating
1. industrial pollutants turned the moths black
2. the selection pressure on the melanic and the non-melanic forms has reversed
3. genetic drift
4. assortative mating
Subtopic: Concept of Organic Evolution: Evidence |
72%
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Modern Homo sapiens arose:
1. 75000-10000 years ago
2. 100000-40000 years ago
3. 1.5 mya
4. 3-4 mya
1. 75000-10000 years ago
2. 100000-40000 years ago
3. 1.5 mya
4. 3-4 mya
Subtopic: Evolution of Homo Sapiens |
77%
From NCERT
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Darwin finches and Australian marsupials are excellent examples of:
1. Saltation
2. Catastrophism
3. Adaptive radiation
4. Anthropogenic artificial selection
1. Saltation
2. Catastrophism
3. Adaptive radiation
4. Anthropogenic artificial selection
Subtopic: Concept of Organic Evolution: Evidence |
94%
From NCERT
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Which of the following can cause disturbance in genetic equilibrium or Hardy-Weinberg equilibrium?
1. Large population
2. No mutations are taking place
3. Assortative [non-random] mating
4. No gen flow
1. Large population
2. No mutations are taking place
3. Assortative [non-random] mating
4. No gen flow
Subtopic: Hardy Weinberg Law |
70%
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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 |
85%
From NCERT
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