M.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
First Semester
Zoology
Core V CELL AND MOLECULAR BIOLOGY
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
All questions carry equal marks.
1. Cell theory.
2. Eukaryotic cells.
3. Desmosomes.
4. Okazaki fragments.
5. Trp operon.
6. Translation.
7. Adhesion molecules.
8. Gap junctions.
9. Stem cells.
10. Pluripotent cells.
Sub. Code
509105
RW-859
2
Ws9
Part B x 5 25)
Answer all questions, choosing either or
All questions carry equal marks.
11. Write a brief note on smooth and rough endoplasmic
membrane.
Or
Explain the structure and functions of
mitochondria.
12. Add note on different forms of DNA.
Or
Describe the fluid mosaic model.
13. Explain positive and negative control.
Or
Give short note on repressor and inducer in gene
regulation.
14. Enumerate the roles of different adhesion
molecules.
Or
Explain about matrix and integrins.
15. Write brief note on types of scaffolds.
Or
Add note on types of stem cells.
RW-859
3
Ws9
Part C x 10 30)
Answer any three questions.
Each question carry equal mark.
16. Explain in detail about cell divisions with diagrammatic
representation.
17. Define DNA replication machinery.
18. List out in detail about protein synthesis mechanism.
19. Add detail account on Quorum sensing and quenching in
microbes.
20. Enumerate Stem cell therapy applications and its
regulatory issues.
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