Annamalai University 2010-1st Year B.Sc Botany - / 550ZOOLOGY - Question Paper

Total No. of Pages: 2
Register Number: 1242
Name of the Candidate:
B.Sc. DEGREE exam - 2010
(BOTANY) / (FIRST YEAR)
550. ZOOLOGY
May.) (Time: three Hours
Maximum: 100 Marks
part - A (10 × two = 20)
ans any TEN ques.
All ques. carry equal marks

1. Proglottis.
2. Atrium.
3. Ampullae of Lorenzini.
4. Uroppygium.
5. Tubules.
6. Zymogen granules.
7. Okazaki fragments.
8. Polygamy.
9. Pace maker.
10. Chloride shift.
11. Malphighian corpuscle.
12. PKU.
13. Non degradable and Biodegradable pollutants.
14. Antibiosis.
15. Vestigial organs.
part - B (5 ×7 = 35)
ans ALL ques.
All ques. carry equal marks

16. a) Compare the structure of obelian polyp and medusa.
(or)
b) define the external morphology of Amphioxus.
17. a) define the air sacs in pigeon.
(or)
b) Write about the chemical composition of DNA.

18. a) describe rough and smooth endoplasmic reticulam. What is their physiological significance.
(or)
b) Write short notes on i) Down's Syndrome ii) Turner's Syndrome.
19. a) discuss the involution process of Frog gastrulation..
(or)
b) elaborate the various kinds of respiratory pigments and add a note on its function?
20. a) What is parasitism? explain various forms of parasitism.
(or)
b) Write an account on morphological and embryological evidences of organic evolution.
part - C (3 ×15 = 45)
ans 3 ques.
All ques. carry equal marks

21. Give an account of Echinoderm larval and their phylogenetic significance.
22. Describe the structure and functions of Mitochoudria.
23. Write an essay on Mendelian principles.
24. What is digestion? elaborate the role of enzymes in digestion?
25. Write an essay on Darwin's theory of natural selection and origin of species.

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Earning:   Approval pending.