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UPSC Prelims 2021

Solved QuestionsUPSC Prelims 2021

[Solved] Consider the following statements: 1. Adenoviruses have single-standard DNA genomes whereas retroviruses have double-standard DNA genomes. 2. Common cold is sometimes caused by an adenovirus whereas AIDS is caused by a retrovirus. Which of the statements given above is/are correct?

Q70. Consider the following statements: 1. Adenoviruses have single-standard DNA genomes whereas retroviruses have double-standard DNA genomes. 2. Common cold is sometimes caused by an…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2021

[Solved] In the context of hereditary disease, consider the following statements: 1. Passing on mitochondrial disease from parent to child can be prevented by mitochondrial replacement therapy either before or after in vitro fertilization of egg. 2. A child inherits mitochondrial disease entirely from mother and not from father. Which of the statements given above is/are correct?

Q66. In the context of hereditary disease, consider the following statements: 1. Passing on mitochondrial disease from parent to child can be prevented by mitochondrial…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2021

[Solved] With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements: 1. Genetic engineering is applied in the development of these vaccines. 2. Bacteria and viruses are used as vectors. which of the statement given above is are correct?

Q65. With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements: 1. Genetic engineering is applied in the development of these vaccines.…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2021

[Solved] Consider the following statements: 1. Moringa (drumstick tree) is a leguminous evergreen tree. 2. Tamarind tree is endemic to South Asia. 3. In India most of the tamarind is collected as minor forest produce. 4. India exports tamarind and seeds for moringa. 5. Seeds of moringa and tamarind can be used in production of biofuels.

Q63. Consider the following statements: 1. Moringa (drumstick tree) is a leguminous evergreen tree. 2. Tamarind tree is endemic to South Asia. 3. In India…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2021

[Solved] With reference to the water on the planet Earth, consider the following statements: 1. The amount of water in the rivers and lakes is more than the amount of groundwater. 2. The amount of water in polar ice caps and glaciers is more than the amount of groundwater. Which of the statements given above is\are correct?

62. With reference to the water on the planet Earth, consider the following statements: 1. The amount of water in the rivers and lakes is…
Sleepy Classes
May 29, 2025
Solved QuestionsUPSC Prelims 2021

[Solved] The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generally kept in check by one or more or a combination of some conditions. Which of the following are such conditions? 1. Burrowing animals and termites 2. Fire 3. Grazing herbivores 4. Seasonal rainfall 5. Soil properties

Q61. The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is…
Sleepy Classes
May 29, 2025
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