Q. No.On Galapagos island, Darwin observed variation in beaks of birds (Darwin's finches) and he concluded:
1. Inter species variation
2. Intraspecies variation
3. Natural selection according to food
4. Inheritance of acquired characters
1. Inter species variation
2. Intraspecies variation
3. Natural selection according to food
4. Inheritance of acquired characters
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Diversification in plant life appeared:
1. Due to abrupt mutations
2. Suddenly on earth
3. By seed dispersal
4. Due to long periods of evolutionary changes
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Which of the following is the closest relative of man:
1. Chimpanzee
2. Gorilla
3. Orangutan
4. Gibbon
Which of the following is not true for a species:
| 1. | Members of a species can interbreed |
| 2. | Variations occur among members of a species |
| 3. | Gene flow does not occur between the populations of a species |
| 4. | Each species is reproductively isolated from every other species |
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Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution:
| 1. | Production of 'Dolly', the sheep by cloning |
| 2. | Development of organs from 'stem' cells for organ transplantation |
| 3. | Development of transgenic animals |
| 4. | Prevalence of pesticide-resistant insects |
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The idea of mutations was brought forth by:
| 1. | Gregor Mendel, who worked on Pisum sativum |
| 2. | Hardy Weinberg, who worked on allele frequencies in a population |
| 3. | Charles Darwin, who observed a wide variety of organisms during sea voyages |
| 4. | Hugo do Vries, who worked on evening primrose |
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After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
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“An Essay on the Principle of Population” that possibly influenced both Darwin and Wallace was written by:
1. JBS Haldane
2. T R Malthus
3. Eldregde and Gould
4. Georges Cuvier
That formation of life was preceded by chemical evolution was proposed by:
1. Oparin and Haldane
2. Darwin and Wallace
3. Urey and Miller
4. Bernard Kettlewell
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