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IFS - Indian Forest Service Botany Previous Year Paper (II) (2001)

IFS - Indian Forest Service Botany Previous Year Paper (II) (2001)

IFS - Indian Forest Service Botany Previous Year Paper (II) (2001)

PAPER - II : SECTION A

l. Write short notes on any four of the following in about 150 words each:
(a) Sex Chromosomes (10)
(b) E.R. (10)
(c) Correlation and regression (10)
(d) Heterosis (10)
(e) Colchicine and EMS. (10)

2. Describe the process of Meiosis sequentially with suitable diagrams. Contrast in with Mitosis. (40)

3. (a) What are the molecular mechanisms of mutations? Discuss the consequences of any two of them. (20)
(b) How do tetraploidy and aneuploidy originate? What are their roles in Plant Breeding? (20)

4. (a) Discuss the role of Biotechnology in Agriculture. (20)
(b) “Ontogenyr repeats Phylogeny.” Discuss. (20)

SECTION B
5. Write short notes on any four of the following in about 150 words each:
(a) Seed (10)
(b) Social Forestry (10)
(c) β-oxidation (10)
(d) TRTPS (10)
(e) Haze. (10)

6. (a) Distinguish between growth movements and stomata movements. (20)
(b) Define and distinguish any four major ecosystems of India. (20)

7. (a) Classify and characterisephy to hormones (20)
(b) Enumerate the secondary plant products with emphasis on the roles of pigments. (20)

8. Explain Biogeochemical Cycles. Describe the hydrological cycle in detail. (40) 





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20 May, 2019, 10:26:48 AM