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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                        LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

AF 16

FIRST SEMESTER – NOV 2006

ZO 1810 – ADVANCED DEVELOPMENTAL BIOLOGY

 

 

Date & Time : 02-11-2006/1.00-4.00     Dept. No.                                                       Max. : 100 Marks

 

 

 

PART- A

(Answer all )                                                                                                           10 x 2 = 20

1. What is Hysterosalpingography?
2. Comment on After birth tissue
3. Write brief notes on embryo transfer
4. What is calcium activation?
5. Explain amphitoky
6. Comment on key and lock type interaction
7. Differentiate early adult and middle aged man
8. List out the significance of polarity
9. Define the term organizer
10. Comment on therapeutic cloning

PART- B

(Answer any four)                                                                                                             4 x 10 = 40

1. Write notes on changes during pregnancy
2. What are the factors causing neoteny and write its significances
3. Write down the classification of placenta
4. Explain the theories of preformation, epigenesis and pangenesis
5. Give an account of exogastrulation
6. Describe the ultrastructural organisation of sperm with reference to movement

PART – C

(Answer any two)                                                                                                  2 x 20 = 40

1. (a) Write an account of ovulation and hormonal control

(b) Explain sperm transport, fertilization and implantation of fertilized ovum

1. Write an essay on human cloning and its ethical implications
2. Give an account of natural parthenogenesis
3. Explain about embryonic induction

 

 

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