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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -ADVANCED ZOOLOGY AND BIOTECHNOLOGY
SECOND SEMESTER APRIL 2018
AZ 2504- CHORDATA
Date: 24-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART A (10x2=20 Marks)
Answer ALL Questions. All Questions carry equal marks.
Define/ Explain the following
1. Wheel Organ
2. Solenocyte
3. Narcine
4. Truncusarteriosus
5. Terrapins
6. Homoeotherms
7. Syrinx
8. Meninges
9. Mesonephros
10. Graafian follicle
PART B (4x10=40 Marks)
Answer any FOUR Questions. All Questions carry equal marks.
11. Explain retrogressive metamorphosis with a suitable example.
12. Describe Digestive System in Frog.
13. Write notes on the Structural peculiarities of Agnatha.
14. Explain the adaptive modification in an arboreal lizard.
15. Characterize Marsupials.
16. Outline the systemic position of man giving reasons.
PART C (2x20=40 Marks)
Answer any TWO Questions. All Questions carry equal marks.
17. Write an essay on structure and affinities of Amphioxus.
18. Give an account of snake venom and biting mechanism.
19. Write an essay on migration in birds.
20. Describe the types of placenta in mammals.