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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – ZOOLOGY
FIRST SEMESTER – APRIL 2008
ZO 1810 – ADVANCED DEVELOPMENTAL BIOLOGY
Date : 05-05-08 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
PART – A
Answer All questions 10 X 2 = 20 marks
- Comment on oocyte retrieval
- Name the animals cloned by Nuclear Transfer Technology
- What are morphogenetic movements?
- Differentiate neoteny from parthenogenesis
- Explain holoblastic and superficial cleavage
- Trace the origin of primordial germ cells in mammals
- Write a note on previtellogenesis and vitellogenesis
- What is an organizer?
- Define amniocentesis
- What are the parameters of semen analysis?
PART – B
Answer any Four 4 X 10 = 40 marks
- Explain the theories of pangenesis and recapitulation
- Write notes on ovulation and hormonal control
- Give an account on natural parthenogenesis
- Explain the interpretation of semen analysis
- Describe the process of exogastrulation
- Briefly explain egg polarity and its origin
PART – C
Answer any Two 2 X 20 = 40 marks
- Write an essay on parturition, infertility, artificial insemination including IUF, ETT and GIFT
- Discuss prenatal diagnosis with reference to noninvasive methods
- Define and explain in detail embryonic induction and comment on the nature of the inducing substance
- Explain the different techniques of cloning and mention the ethical implications