IFS Botany Papers 2001
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IFS Botany 2001
Paper-I
Section-A
- Answer any four of the following (Your answers should not exceed 150 words for each of the sub-sections) : (10 × 4 = 40)
- Write short notes on:
- Thermophylliceubacteria
- Symbiotic nitrogen-fixing bacteria
- Microbes which produce economically useful products
- Oncogenic viruses
- Answer the following:
- Write a short account of host specific toxins.
- What is ‘Koji’ fermentation? How is it formed and what are the products produced by it?
- Bio-deterioration caused by microbial organisms in agricultural produce. Explain this phenomenon.
- What are fungicides and how are they applied in standing crops and plant products?
- Explain the following:
- Canker
- Blight
- Galls
- Mosaic
- Describe the following:
- Heterocysts
- Akinetes
- Water bloom algae
- Witches ′ broom
- Write short notes on:
- Diatoms
- Viroids
- Mycoplasma
- Proteases
- Write short notes on:
- Answer the following questions
- Give an account of various kinds of biofertilisers.
- How do food infection and food poisoning Occur? Explain (20 × 2 = 40) .
- Answer the following questions
- The rusts of cereals are polymorphic in nature. Explain this statement and draw the lifecycle and control measures.
- Give an account of the improvements made in activities of micro-organisms in forestry, agriculture, industry and environment (20 × 2 = 40) .
- Describe the following: (10 × 4 = 40)
- Economic importance of blue-green algae
- Sporophyte of Selaginella
- Archegoniophore of Marchantia
- Sporophyte of Marsilea
Section B
- Answer any four of the following (Your answers should not exceed l50words for each of the sub-sections) : (10 × 4 = 40)
- Distinguish the following:
- Storied and non-storied wood
- Free central placentation and parietal placentation
- Interxylary and intraxylary phloem
- Latex-tubes and resin canals
- Describe the following:
- Equisetum species are not primitive vascular cryptogams
- Stamens in Cucurbitaceae
- Translators in Asclepiadaceae
- Anomalous secondary growth
- Describe the following:
- Reproductive structure in Lycopodium
- External morphology of Ephedra
- Protein Synthesis
- Cycadofihicales
- Write short notes on the following:
- Ecosystem
- Floral diagram in Solanaceae
- Distribution of Williamsonia
- Carpels in dicots
- Briefly describe the following:
- Kranz Syndrome
- Herbarium Techniques
- Type Specimen
- Hydrosere
- Distinguish the following:
- Answer the following: (10 × 4 = 40)
- Discuss photoperiodism and flowering.
- What is experimental embryology? Explain.
- What is Ginkgo biloba called a living fossil?
- Write about the reproduction in Taxus.
- Answer the following: (10 × 4 = 40)
- Write an account of the family Rubiaceae and compare it with that of Verbenaceae.
- Describe the family Cucurbitaceae, giving floral diagrams, floral formulae.
- Where are the National Botanical Gardens and Lloyd Botanical Gardens? How are herbaria in botanical gardens arranged?
- Write about the economic importance of the family Asteraceae.
- Answer the following questions
- Mention he botanical name, family and plant part used of the following: (10 × 2 = 20)
- Teak
- Heeng
- Jute
- Turmeric
- Sarpagandha
- Cocoa
- Cotton
- Bamboo
- Opiuni
- Peppermint
- Write an account of Takhtajan system of classification of plants (20) .
- Mention he botanical name, family and plant part used of the following: (10 × 2 = 20)
Paper-II
Section A
- Write short notes on any four of the following in about 150 words each:
- Sex Chromosomes (10)
- ER (10)
- Correlation and regression (10)
- Heterosis (10)
- Colchicine and EMS (10) .
- Describe the process of Meiosis sequentially with suitable diagrams. Contrast in with Mitosis (40) .
- Answer the following questions
- What are the molecular mechanisms of mutations? Discuss the consequences of any two of them (20) .
- How do tetraploidy and aneuploidy originate? What are their roles in Plant Breeding (20) ?
- Answer the following questions
- Discuss the role of Biotechnology in Agriculture (20) .
- Ontogenyr repeats Phylogeny. Discuss (20) .
Section B
- Write short notes on any four of the following in about 150 words each:
- Seed (10)
- Social Forestry (10)
- alpha-oxidation (10)
- TRTPS (10)
- Haze (10) .
- Answer the following questions
- Distinguish between growth movements and stomata movements (20) .
- Define and distinguish any four major ecosystems of India (20) .
- Answer the following questions
- Classify and characterisephy to hormones (20)
- Enumerate the secondary plant products with emphasis on the roles of pigments (20) .
- Explain Biogeochemical Cycles. Describe the hydrological cycle in detail (40) .