(Paper) IFS - Indian Economic Service Zoology Previous Year Paper (II) (2002)

Paper : IFS - Indian Economic Service Zoology Previous Year Paper (II) (2002)

Paper-II : SECTION A
SECTION A
1. Distinguish between any four of the following (Each answer may be in about 150 words) :
(a) Mitosis and Meiosis
(b) Plasmids and Cosmids as vectors
(c) Role of mutations and variations in evolution.
(d) Species and Subspecies
(e) 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 :
(a) Origin of Life
(b) Importance of fossils
(c) International Code of Nomenclature
(d) Mimicry. (10 × 440)

SECTION B
5. Distinguish between any four of the following (Each answer may be in about 150 words):
(a) Hormones and Enzymes
(b) Nephron and Neuron
(c) Blastula and Gastrula
(d) Growth and Regenerations
(e) Red blood corpuscles and White blood Corpuscles. (10 × 4 = 40)

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

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

8. Write notes on the following:
(a) In-vitro fertilization
(b) Causation of metamorphosis in frog
(c) Placentation in humans
(d) Baer’s Law
(e) Cloning (8 × 5 = 40)