LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 20

FIRST SEMESTER – APRIL 2006

                                      ZO 1810 – ADVANCED DEVELOPMENTAL BIOLOGY

 

 

Date & Time : 28-04-2006/1.00-4.00 P.M.   Dept. No.                                                       Max. : 100 Marks

 

 

SECTION – A

 

Answer ALL the questions                                                              (10 ´ 2 = 20 marks)

 

1. Explain ETT.
2. Define Amniocentesis.
3. What is an Organiser.
4. Comment on Secondary Organ Rudiment.
5. What is indifferent Gonad?
6. Define EGG Polarity.
7. Differentiate Pathological and Physiological Polyspermy.
8. List out the different types of Blastula.
9. Explain Ovoviviparous condition.
10. Comment on “After Birth Tissue”.

 

SECTION – B

 

Answer any FOUR questions                                                          (4 ´ 10 = 40 marks)

 

11. Define Aging. Explain changes occurring during aging and the theories pertained to aging process.
12. List out and describe the theories of fertilization.
13. Write down the development of Amnion and Chorion with functions.
14. Give an account of Embryonic Nutrition.
15. Describe the fate map of Amphibian Blastula.
16. Explain the process of Morphogenetic movements.

 

SECTION – C

 

Answer any TWO questions                                                           ( 2 ´ 20 = 40 marks)

 

17. Define Pregnancy and explain changes during pregnancy.
18. Write an essay on Invitro fertilization.
19. Give an account on classification of Placenta.
20. Write an account on Physiology of Gastrulation.

 

 

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