M.Sc DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Zoology
CELL AND MOLECULAR BIOLOGY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Cell wall
2. Structure of mitochondria
3. DNA polymerase
4. Replication fork
5. Negative control
6. Introns
7. Extracellular signaling molecules
8. Serpentine receptors
9. Bone marrow transplantation
10. Pluripotency
Sub. Code
4MZO1C3
AFF-4914
2
Ws9
Part B x 5 25)
Answer all questions, choosing either or
11. Write notes on nucleus.
Or
Briefly describe about the mitotic cell division
12. What are the enzymes involved in DNA replication?
Or
Write short note on Telomerase.
13. What are the components needed for translation?
Or
Write notes on the properties of codons.
14. Briefly describe about hormones and their
receptors.
Or
Explain about neurotransmission and its
regulation.
15. Write notes on embryonic stem cells and their
applications.
Or
Explain briefly about hematopoietic stem cells.
AFF-4914
3
Ws9
Part C x 10 30)
Answer any three questions.
16. Describe about the structure and function of Endoplasmic
Reticulum.
17. Explain about DNA replication in prokaryotes.
18. Explain the mechanism of lac and trp operons.
19. Describe about any three signal transduction pathways.
20. Give a brief account on classification of stem cell and its
applications.
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