Q. No.The idea of mutation was brought forth by:
1.
Hardy Weinberg, who worked on allele frequencies in a population.
2.
Charles Darwin, who observed a wide variety of organisms during the sea voyage.
3.
Hugo do Vries, who worked on evening primrose.
4.
Gregor Mendel, who worked on PisumSativum.
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The process by which organisms with different evolutionary histories evolve similar phenotypic adaptations in response to a common environmental challenge is called:
| 1. | Natural selection | 2. | Convergent evolution |
| 3. | Non-random evolution | 4. | Adaptive radiation |
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The wings of a bird and the wings of an insect are:
| 1. | Homologous structures that represent convergent evolution. |
| 2. | Homologous structures that represent divergent evolution. |
| 3. | Analogous structures that represent convergent evolution. |
| 4. | Phylogenetic structures that represent divergent evolution. |
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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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In allopatric speciation, reproductive isolation is initially caused by:
| 1. | behavioral barriers | 2. | postzygotic barriers |
| 3. | geographic barriers | 4. | ecological barriers |
The most critical evolutionary process, that leads to changes in allele frequencies and favors or promotes adaptation as a product of evolution, is :
| 1. | Genetic drift | 2. | Gene migration |
| 3. | Mutation | 4. | Natural selection |
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The differential success in the reproduction, of an organism, in a given environment, is :
| 1. | Adaptation | 2. | Natural Selection |
| 3. | Adaptive radiation | 4. | Saltatory evolution |
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Identify the incorrect statement:
| 1. | Neanderthals lived between 1,50,000 and 1,00,000 years back. |
| 2. | Modern Homo sapiens arose between 75000 and 10000 years ago. |
| 3. | Pre-historic cave art developed around 18000 years ago. |
| 4. | Agriculture came around 10000 years ago. |
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A population geneticist finds that a new allele in a population has suddenly increased in frequency. Most likely this allele is:
1. mutating rapidly
2. flowing with emigrants
3. strongly selected for
4. a product of assortative mating
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