LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

DE 23

SECOND SEMESTER – APRIL 2008

ZO 2808 – CELL AND MOLECULAR BIOLOGY

 

 

 

Date : 17/04/2008            Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

PART A                                (Answer all)                                        10 x 2 = 20 Marks

1. Comment on pachytene
2. What is cystic fibrosis?
3. What are oncogenes?
4. Explain the process of apoptosis
5. Write notes on sodium pump
6. Comment on Southern blot
7. What are kappa particles?
8. Mention the significance of eugenics
9. What is heterophagy?
10. Comment on radiation syndrome

PART B                                ( Answer any four)                                4 x 10 = 40 Marks

1. Explain the process staining and banding of chromosome
2. Write the various theories of carcinogens.
3. Give an account of genetics of aging
4. Write notes on deficiency and duplication of chromosomes
5. Describe the different organelles involved in the process of protein synthesis
6. Describe the characteristics of triplet codon

PART C                                 (Answer any two)                                    2 x 20 = 40 Marks

1. Write an essay on specific chromosome translocations, tumor suppressor genes and hereditary cancers
2. Give an account on trp operon hypothesis
3. Explain about human genome project
4. Write a detailed account on DNA from museum specimen

 

 

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