IFS Zoology Papers 2002

IFS Zoology 2002

Paper-I

Section A

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

    1. Metamerism and its significance (10)

    2. Structure of respiratory organs in arthropods (10)

    3. Bipinnaria larva (10)

    4. Origin of tetrapod limb (10)

    5. Parasitic adaptations in Platyhel minthes (10).

  2. Answer the following questions

    1. Give an account of general organization of Onychophora and discuss its status in animal kingdom (20).

    2. Elucidate the affinities and systematic position of Parazoa based on its structural peculiarities (20).

  3. Answer the following questions

    1. Explain metamorphosis in insects and add a note on its hormonal regulation (20).

    2. Describe locomotory organs and mechanism of locomotion in Mollusca (20).

  4. Give an illustrative account of the derivatives of integument in amphibia, reptiles and mammals (40).

Section B

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

    1. Environment degradation (10)

    2. Social behaviour in primates (10)

    3. Pyrilla perpusilla (10)

    4. Plague: Its etiology, epidemiology and pathogenesis (10)

    5. Principles of spectroscopy (10)

  2. Answer the following questions

    1. Describe major terrestrial biomes of India and comment on their present status (20).

    2. What is conservation? Discuss in detail the wild life management practices undertaken in

    India (20).

  3. Answer the following questions

    1. Present an account of various modes of associative learning in animals (20).

    2. Mosquito and malaria have biological links. Substantiate the statement with reasons (20).

  4. Explain correlation analysis. Describe different types and methods of studying correlation with suitable examples (40).

Paper-II

Section A

  1. Distinguish between any four of the following (Each answer may be in about 150 words):

    1. Mitosis and Meiosis

    2. Plasmids and Cosmids as vectors

    3. Role of mutations and variations in evolution.

    4. Species and Subspecies

    5. Transcription and Translation (10 × 4 = 40).

  2. Lysosome is the ‘suicide bag’ of the cell. Discuss (40).

  3. Give an account of DNA finger printing technique and its importance (40).

  4. Write notes on the following:

    1. Origin of Life

    2. Importance of fossils

    3. International Code of Nomenclature

    4. Mimicry (10 × 440).

Section B

  1. Distinguish between any four of the following (Each answer may be in about 150 words):

    1. Hormones and Enzymes

    2. Nephron and Neuron

    3. Blastula and Gastrula

    4. Growth and Regenerations

    5. Red blood corpuscles and White blood Corpuscles (10 × 4 = 40).

  2. Give an account of bioenergetics of glycolysis and Krebs cycle (40).

  3. Explain the mechanism of hormone action and the importance of second messengers (40).

  4. Write notes on the following:

    1. In-vitro fertilization

    2. Causation of metamorphosis in frog

    3. Placentation in humans

    4. Baer's Law

    5. Cloning (8 × 5 = 40)