B.Tech 5ET214A/6C0030 (2005/06/07/08/09) c Sathyabama University Dec 2010

Register Number

                               

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.Tech-BTE/BIN/BME

Title of the Paper: c                   Max. Marks: 80

Sub. Code: 5ET214A/6C0030 (2005/06/07/08/09) Time: 3 Hours

Date: 04/12/2010                                                    Session: AN

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PART - A                (10 X 2 = 20)

Answer ALL the Questions

1.     Differentiate between Purines and Pyrimidines.

2.     What is meant by Z DNA?

3.     Explain rho proteins.

4.     Name any two transcription inhibitor.

5.     Define Excision repair.

6.     What are cistrons?

7.     What are the functions of Initiation factors 1 and 2?

8.     What are enhancers?

9.     Define Retroposons.

10.   What are the uses of retro viruses?

PART – B                       (5 x 12 = 60)

Answer All the Questions

11.   Describe in detail the secondary structure of single stranded and double stranded tail DNA.

(or)

12.   Illustrate the different types of RNA and their functions.

       

13.   Describe in detail the process of translation.

(or)

14.   Describe the codon usage employed by the different bacteria.

15.   Define and describe Jacob and Monad Operon concept. Illustrate the inducible sysem of gene regulation in a prokaryote.

(or)

16.   Describe in detail the various types of mutation.

17.   Explain in detail the organization of genome.

(or)

18.   Discuss the factors influencing the inititation process of transcription.

19.   Explain the significance and mechanisms of RNA splicing.

(or)

20.   Explain the characteristics and significance of Oncogenes.