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Q. No.Which of the following is an example of homologous organs?
1.
Wings of birds and wings of insects
2.
Flippers of dolphins and hands of humans
3.
Eyes of octopus and eyes of humans
4.
Thorns of roses and tendrils of peas
Subtopic: Embryological Evidence of Evolution |
Level 3: 35%-60%
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According to the Hardy-Weinberg equilibrium, which condition is not required for a population to remain at genetic equilibrium?
| 1. | Random mating must occur. |
| 2. | The population must be infinitely large. |
| 3. | Migration must occur frequently with other populations. |
| 4. | There should be no selection for any of the genotypes. |
Subtopic: Hardy Weinberg Law |
59%
Level 3: 35%-60%
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Which extinct reptiles are considered as ancestors of dinosaurs, crocodiles, and birds?
1. Therapsids
2. Thecodonts
3. Pterosaurs
4. Plesiosaurs
1. Therapsids
2. Thecodonts
3. Pterosaurs
4. Plesiosaurs
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
64%
Level 2: 60%+
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Which of the following was the first primate to consistently use tools like stone weapons?
1. Neanderthals
2. Australopithecus
3. Homo habilis
4. Homo sapiens
1. Neanderthals
2. Australopithecus
3. Homo habilis
4. Homo sapiens
Subtopic: Evolution of Homo Sapiens |
Level 3: 35%-60%
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| Assertion (A): | Disturbance in genetic equilibrium, or Hardy-Weinberg equilibrium can be interpreted as resulting in evolution. |
| Reason (R): | This principle says that allele frequencies in a population are stable and is constant from generation to generation. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Hardy Weinberg Law |
Level 3: 35%-60%
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The emergence of resistance to antibiotics in bacterial groups is due to:
| 1. | adaptive radiation |
| 2. | transduction |
| 3. | pre-existing variation in the population |
| 4. | mutations induced by antibiotics |
Subtopic: Concept of Organic Evolution: Evidence |
Level 3: 35%-60%
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According to the, now discarded, theory of spontaneous generation of life:
| 1. | life arose from living forms only |
| 2. | life on earth came from outer space |
| 3. | life can arise from non-living things only. |
| 4. | life arises spontaneously, neither from living nor from the non-living. |
Subtopic: Origin of Life |
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Level 2: 60%+
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One out of every 10,000 newborns in the United States has phenylketonuria (PKU), a disease caused by a recessive allele. Assuming Hardy-Weinberg equilibrium, what is the frequency of carriers of this disease in the population?
1. 0.01
2. 0.02
3. 0.04
4. 0.08
Subtopic: Hardy Weinberg Law: 1 |
Level 3: 35%-60%
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The loss or gain of alleles in a population due to emigration or immigration is known as __________. This process generally __________ genetic differences among populations.
1. Genetic drift; increases
2. Gene flow; decreases
3. Mutation; stabilizes
4. Natural selection; reduces
Subtopic: Population Genetics |
Level 3: 35%-60%
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Geneticists refer to "fitness" as:
| 1. | the measure of an organism's adaptability to various habitats. |
| 2. | the number of mates each individual of the population selects. |
| 3. | the relative health of each individual in the population. |
| 4. | a measure of the contribution of a genotype to the gene pool of the next generation. |
Subtopic: Biological Evolution |
Level 3: 35%-60%
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