Q. No.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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Which of the following is relatively most accurate method for dating of fossils?
1. Electron-spin resonance method
2. Uranium-lead method
3. Potassium-argon method
4. Radio-carbon method
De Vries gave his mutation theory on organic evolution while working on
1. Oenothera lamarckiana
2. Drosophila melanogaster
3. Pisum sativum
4. Althea rosea
At a particular locus, the 'A' allele frequency is 0.6 and that of 'a' allele is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?
| 1. | 0.24 | 2. | 0.16 |
| 3. | 0.48 | 4. | 0.34 |
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Which one of the following amino acids was not found to be synthesized in Miller’s experiment?
1. Glycine.
2. Aspartic acid
3. Glutamic acid
4. Alanine
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An important evidence in favor of organic evolution is the occurrence of
1. Homologous and vestigial organs
2. Analogous and vestigial organs
3. Homologous organs only
4. Homologous and analogous organs
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Which one of the following is not a living fossil?
1. King crab
2. Sphenodon
3. Archaeopteryx
4. Peripatus
Evolutionary history of an organism is known as
1. Phylogeny
2. Ancestry
3. Paleontology
4. Ontogeny
Jurassic period of the Mesozoic era is characterized by
1. Gymnosperms are dominant plants and first birds appears.
2. Radiation of reptiles and origin of mammal like reptiles.
3. Dinosaurs become extinct and angiosperms appears.
4. Flowering plants and first dinosaurs appear.
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What is common to whale, seal and shark?
1. Homoiothermy
2. Seasonal migration
3. Thick subcutaneous fat
4. Convergent evolution
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