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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -ADVANCED ZOOLOGY AND BIOTECHNOLOGY
THIRD SEMESTER APRIL 2018
16UZO3MC03- DEVELOPMENTAL BIOLOGY
Date: 08-05-2018 Dept. No. Max. 100 Marks
Time: 09:00-12:00
PART A
ANSWER ALL QUESTIONS: (10 X 2 20)
Define the following:
1. Organizers
2. Spermatogenesis
3. Involution
4. Epiboly
5. Morphogenesis
6. Extra embryonic membrane
7. Stem cell
8. Regeneration
9. Cojoined twins
10. Multiple births
PART B
ANSWER ANY FOUR IN BRIEF: X 10
11. Describe the fertilization in sea urchin.
12. Write a paragraph the development of placenta.
13. Explain the role of stem cell in regeneration and development.
14. Describe the congenital malformations with examples,
15. Explain the process of regeneration and aging.
16. Elaborate the history of developmental biology.
PART C
ANSWER ANY TWO IN DETAIL: X 20 40)
17. Give an account on Oogenesis with suitable diagram.
18. Write an essay on Gastrulation in frog and chick with suitable sketch.
19. Describe the process of regeneration in hydra.
20. Explain the IVF techniques and its applications.