LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – ZOOLOGY
SECOND SEMESTER – April 2009
ZO 2814/ZO 2808 - CELL AND MOLECULAR BIOLOGY
Date & Time: 20/04/2009 / 1:00 - 4:00
Dept. No.
UF 21
Max. : 100 Marks
PART – A
(Answer all Questions)
(10 X 2 = 20 Marks)
1. Comment on mitochondrial genes
2. What are lysosomes?
3. Comment on environmental ethics
4. Define gene amplification
5. Explain “Guardian of the Genome”
6. Define cell cycle
7. What is a protein pump?
8. Differentiate promoter from repressor
9. What are immunoglobulins?
10. Comment on fixatives
PART - B
(Answer any four Questions)
(4 X 10 = 40 Marks)
11. Write notes on DNA from museum specimen
12. Explain the theories of carcinogenesis
13. Explain Lambrush Chromosomes
14. Comment on nuclear oncogenes
15. Give an account on human genome project
16. Elaborate the regulation of tryptophan operon
PART - C
(Answer any two Question)
(2 X 20 = 40 Marks)
17. Write an essay on genetic code
18. Explain tumor suppressor genes and hereditary cancers. Add a note on oncogenes and
growth factors
19. Give an account on the difference between prokaryotic and eukaryotic cells
20. Discuss the DNA finger printing technology is based on DNA sequencing.
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