M.Sc. DEGREE EXAMINATION, APRIL 2018
First Semester
Zoology
CELL AND MOLECULAR BIOLOGY
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
1. Numerical aperture
2. Nuclear pore
3. F1 particle
4. Autolysis
5. Okazaki fragments
6. Rolling circle model
7. Inducible operon
8. Poly A tail
9. Integrins
10. Clathrin coated vesicles.
Sub. Code
7MZO1C2
AFS-0606
2
Ws9
Part B 5 25)
Answer all questions, choosing either or
11. Enumerate the applications of compound and
electron microscope.
Or
Write the theories explaining the structure of cell
membrane.
12. Enumerate the modification of golgi complex.
Or
Give the structure of endoplasmic reticulum and
write its functions.
13. Enlist the difference between prokaryotic and
eukaryotic DNA replication.
Or
Write the enzymes involved in DNA replication.
14. Give an account on Trp operon concept.
Or
Explain post translational modification.
15. Write the types of signal transduction pathways.
Or
Discuss the types of cell junctions and cell adhesion
molecules.
AFS-0606
3
Ws9
Part C 10 30)
Answer any three questions.
16. Write the events occur during meiosis. Enumerate the
difference between mitosis and meiosis.
17. Discuss the types of ribosomes and write its functions.
18. Give an elaborate account on genetic code.
19. Write a detailed account on Eukaryotic transcription.
20. Discuss the role of intra cellular and extra cellular
receptors in signaling.
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