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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
M.Sc.DEGREE EXAMINATION ZOOLOGY
FIRSTSEMESTER APRIL 2018
17PZO1MC03- ADVANCED DEVELOPMENTAL BIOLOGY
Date: 28-04-2018 Dept. No. Max. 100 Marks
Time: 09:00-12:00
PART- A
Answer ALL the questions. (10×2 20 marks)
1. Comment on the period of gestation
2. What is after birth tissue?
3. Define fetoscopy
4. What is cryoprotectant?
5. Define morphogenesis
6. Comment on Corpora allata
7. What is embryo sexing?
8. Define totipotency.
9. Differentiate adaptive and terminal differentiation.
10. What is phenocopy?
PART- B
Answer any FOUR questions. (4×10 40 marks)
11. Write notes on ovulation
12. Give an account on the functions of placenta
13. Describe the ultrastructure of spermatozoon and its function.
14. Explain embryo splitting.
15. Discuss Hans Spemann's experiment on nuclear transplantation.
16. Explain progressive changes during pregnancy.
PART- C
Answer any TWO questions. (2×20 40 marks)
17. Write an essay on prenatal diagnosis of abnormalities.
18. Give an account on aging biology
19. Explain Epimorphic regeneration in salamander.
20. Discuss signal transduction.