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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When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed
1. Convergent evolution
2. Divergent evolution
3. Microevolution
4. Co-evolution
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Industrial melanism as observed in peppered moths proves that:
1. | Melanism is a pollution-generated feature. |
2. | The true black melanic forms arise from a recurring random mutation. |
3. | The melanic form of the moth has no selective advantage over lighter from the industrial area. |
4. | The lighter form of the moth has no selective advantage either in a polluted industrial area or a non-polluted area. |
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Adaptive radiations refers to
1. Power of adaptation in an individual to a variety of environments.
2. Adaptations due to geographical isolation.
3. Evolution of different species from a common ancestor.
4. Migration of members of a species to different geographical areas.
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