Q4.
(a) Explain the bio-chemical and molecular basis of mutations.
(b) Narrate briefly the various methods of gene transfer in plants.
| Detail | Information |
|---|---|
| Examination | Indian Forest Service (Main) Examination |
| Year | 2017 |
| Conducting Body | UPSC |
| Paper | Botany Paper II |
| Subject | Botany |
| Duration | Three Hours |
| Maximum Marks | 200 |
| Question Type | Mixed |
This is the question paper for the Indian Forest Service (Main) Examination held in 2017, specifically for Botany Paper II. Conducted by UPSC, this paper carries a maximum of 200 marks and allows three hours for completion. It is designed to assess candidates' in-depth knowledge of various aspects of Botany, including molecular biology, genetics, evolution, plant physiology, and phytogeography. The paper consists of a mix of compulsory and optional questions, requiring candidates to attempt a specific number from different sections. Aspirants can use this paper to understand the exam's difficulty level, question types, and important topics for their preparation.
(a) Explain the bio-chemical and molecular basis of mutations.
(b) Narrate briefly the various methods of gene transfer in plants.
Section B
(a) Allelopathy
(b) Intellectual property rights
(c) Molecular markers in plant breeding
(d) Role of carotenoids in plants
(e) Evidences of organic evolution
(a) "Calvin cycle is said to be autocatalytic" - Justify the statement. Compare the mode of CO2 assimilation in C3 and C4 plants. How does C4 pathway differ from C3 pathway in terms of efficiency?
(b) Describe the role of phytohormones in agri-horticulture.
(a) With illustration describe the structure of phytochrome. Explain the role of phytochrome in flower development process.
(b) Describe the methods of breaking seed dormancy. Trace the physiological changes involved during seed germination.
(a) Phytoremediation is not an ultimate solution to all the maladies of air and water. Explain in detail with specific examples.
(b) Describe the various phytogeographical zones met within India and add their salient features. In an ideal situation, there will be a high temperature and rainfall with restricted snowfall plus Rhododendron, Oaks, Orchids and Ferns - what is your inference?
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This question paper is for the Indian Forest Service (Main) Examination.
This question paper is from the year 2017.
The subject of this paper is Botany, specifically Paper II.
The Indian Forest Service Examination is conducted by UPSC (Union Public Service Commission).
The maximum marks for Botany Paper II is 200.
The time allowed for this paper is Three Hours.