M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Third Semester
Biochemistry
MOLECULAR BIOLOGY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. What is chromatin?
2. What are transposons?
3. List out the inhibitors of DNA replication.
4. Define genetic code.
5. What is genetic mapping?
6. List out the isolation methods of mutants.
7. What is insertion sequence?
8. What is transduction?
9. Define population genetics.
10. What is gene frequency?
Sub. Code
4MBC3C3
AFF-4941
2
Sp 6
Part B x 5 25)
Answer all questions.
11. Explain the protein family.
Or
Describe the bacterial insertion sequence.
12. Discuss the post translational modification of
proteins.
Or
Explain the structure and functions of tRNA.
13. Illustrate the types of mutants.
Or
Give an account on genetic analysis.
14. Explain the methods of gene transfer by
conjugation.
Or
Illustrate the bacterial gene mapping with
interrupted conjugation.
15. Discuss the genetic pattern formation.
Or
Describe the homeotics genes.
AFF-4941
3
Sp 6
Part C 10 30)
Answer any three questions.
16. Exemplify the structure and organization of eukaryotic
chromosome.
17. Describe in detail the types and mechanism of DNA
replication in eukaryotic system.
18. Illustrate the various types of genetic recombination.
19. Give an account on various types of plasmids.
20. Derive Hardy Weinber's law and its application.
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