IFS Zoology Papers 2005

IFS Zoology 2005

Paper-I

Section A

  1. Write briefly on any four of the following in not more than 150 words each

    1. Radiata and its position in animal kingdom (10)

    2. Compare the heart of frog with that of bird (10)

    3. Formation of coral reefs (10)

    4. Thyroid and its hormone (10)

    5. Nematocysts structure and mechanism of action (10).

  2. Answer the following questions

    1. Discuss the general characteristics of Peripatus and comment on its affinities (20).

    2. Describe the salient features of phylum Mollusca and classify the same upto classes citing distinguishing characters and examples (20).

  3. Answer the following questions

    1. Give an account of the larval forms of Echinodermata and add a note on their significance (20).

    2. Describe the general features and life history of Fasciola and add a note on its relation to man (20).

  4. Give an illustrative account of the organs, mechanism and physiology of respiration in fishes (40).

Section B

  1. Write notes on any four of the following in not more than 150 words each:

    1. Biological rhythms (10)

    2. Role of pheromones in alarm spreading (10)

    3. Cholera its vector, pathogens and prevention (10)

    4. Chi square test (10)

    5. Integrated pest management (10).

  2. Describe the detail the ecological succession and add a note on its significance (40).

  3. Answer the following questions

    1. What is polymorphism? Explain this phenomenon with reference to termites and honey bees. Add a note on its significance (20).

    2. Explain how Silk is cultured in India and add a note on its economic importance (20).

  4. Answer the following questions

    1. Give an account of the principles and working of the transmission electron microscopy (20).

    2. Citing suitable examples explain how the measures of central tendency are applied in biostatistics (20).

Paper-II

Section A

  1. Distinguish between any four of the following (each answer may be in about 150 words): (10 × 4 = 40)

    1. Primary and Secondary lysosome

    2. Non-overlapping and Overlapping code

    3. Klinefelter's and Turner's syndrome.

    4. Allopatric and Sympatric speciation

    5. Genus and Species

  2. Describe how the fluid mosaic model of cell membrane is suited to its functions (40).

  3. Explain the structure and role of plasmids and cosmids in cloning (40).

  4. Write notes on the following (10 × 4 = 40)

    1. Methods of speciation

    2. Reasons for discontinuous distribution of animals

    3. Binomial nomenclature

    4. Five-kingdom system of classification of Whittaker.

Section B

  1. Distinguish between any four of the following (each answer may be in about 150 words): (10 × 4 = 40)

    1. Lipids and Fatty acids

    2. Impulse conduction Within a Nerve and Between Nerves

    3. Neoteny and Neoplasia

    4. Induction and Invagination

    5. Role of hormones in Pregnancy and Parturition.

  2. Describe the structure of the different types of RNA. Add a note on their functions (40).

  3. Describe two different examples for two different mechanisms of actions of hormones (40).

  4. Write notes on the following: (10 × 4 = 40)

    1. In vitro fertilization

    2. Role of cytoplasm in development

    3. Role of ecdysone and juvenile hormone in insect metamorphosis

    4. Influence of yolk on cleavage patterns.