Q. No.Genetic drift operates in
1. Large isolated populations
2. Non-reproductive populations
3. Slow reproductive populations
4. Small isolated population
1. Large isolated populations
2. Non-reproductive populations
3. Slow reproductive populations
4. Small isolated population
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In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1. 2pq
2. Pq
3. q2
4. p2
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The chronological order of human evolution from early to the recent is:
| 1. | Ramapithecus → Australopithecus → Homo habilis → Homo erectus |
| 2. | Ramapithecus → Homo habilis → australopithecus → Homo erectus |
| 3. | Australopithecus → Homo habilis → Ramapithecus → Homo erectus |
| 4. | Australopithecus → Ramapithecus → Homo habilis → Homo erectus |
According to Hugo de Vries, the mechanism of evolution is:
| 1. | Phenotypic variations | 2. | Saltation |
| 3. | Multiple-step mutation | 4. | Minor mutations |
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Among the following sets of examples for divergent evolution, select the incorrect option:
1. Brain of bat, man and cheetah
2. Heart of bat, man and cheetah
3. Forelimbs of man, bat and cheetah
4. Eye of octopus, bat and man
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The similarity of bone structure in the forelimbs of many vertebrates is an example of:
1. Convergent evolution
2. Analogy
3. Homology
4. Adaptive radiation
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Sickle cell anaemia has not been eliminated from African population as
1. It is controlled by dominant genes
2. It is controlled by recessive genes
3. It is not a fatal disease
4. It provides immunity against malaria
In the famous experiment by Louis Pasteur, the straight and long-necked flasks served :
1. as the experimental setup
2. as a control
3. as a cohort
4. no useful purpose
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In the human population the frequency of which of the following will always be more than what is apparent?
| 1. | somatic mutations | 2. | dominant alleles |
| 3. | recessive alleles | 4. | females |
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