IFS Zoology Papers 2005
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IFS Zoology 2005
Paper-I
Section A
- Write briefly on any four of the following in not more than 150 words each
- Radiata and its position in animal kingdom (10)
- Compare the heart of frog with that of bird (10)
- Formation of coral reefs (10)
- Thyroid and its hormone (10)
- Nematocysts structure and mechanism of action (10) .
- Answer the following questions
- Discuss the general characteristics of Peripatus and comment on its affinities (20) .
- Describe the salient features of phylum Mollusca and classify the same upto classes citing distinguishing characters and examples (20) .
- Answer the following questions
- Give an account of the larval forms of Echinodermata and add a note on their significance (20) .
- Describe the general features and life history of Fasciola and add a note on its relation to man (20) .
- Give an illustrative account of the organs, mechanism and physiology of respiration in fishes (40) .
Section B
- Write notes on any four of the following in not more than 150 words each:
- Biological rhythms (10)
- Role of pheromones in alarm spreading (10)
- Cholera its vector, pathogens and prevention (10)
- Chi square test (10)
- Integrated pest management (10) .
- Describe the detail the ecological succession and add a note on its significance (40) .
- Answer the following questions
- What is polymorphism? Explain this phenomenon with reference to termites and honey bees. Add a note on its significance (20) .
- Explain how Silk is cultured in India and add a note on its economic importance (20) .
- Answer the following questions
- Give an account of the principles and working of the transmission electron microscopy (20) .
- Citing suitable examples explain how the measures of central tendency are applied in biostatistics (20) .
Paper-II
Section A
- Distinguish between any four of the following (each answer may be in about 150 words) : (10 × 4 = 40)
- Primary and Secondary lysosome
- Non-overlapping and Overlapping code
- Klinefelter՚s and Turner՚s syndrome.
- Allopatric and Sympatric speciation
- Genus and Species
- Describe how the fluid mosaic model of cell membrane is suited to its functions (40) .
- Explain the structure and role of plasmids and cosmids in cloning (40) .
- Write notes on the following (10 × 4 = 40)
- Methods of speciation
- Reasons for discontinuous distribution of animals
- Binomial nomenclature
- Five-kingdom system of classification of Whittaker.
Section B
- Distinguish between any four of the following (each answer may be in about 150 words) : (10 × 4 = 40)
- Lipids and Fatty acids
- Impulse conduction Within a Nerve and Between Nerves
- Neoteny and Neoplasia
- Induction and Invagination
- Role of hormones in Pregnancy and Parturition.
- Describe the structure of the different types of RNA. Add a note on their functions (40) .
- Describe two different examples for two different mechanisms of actions of hormones (40) .
- Write notes on the following: (10 × 4 = 40)
- In vitro fertilization
- Role of cytoplasm in development
- Role of ecdysone and juvenile hormone in insect metamorphosis
- Influence of yolk on cleavage patterns.