Download GTU BE/B.Tech 2019 Summer 4th Sem New 2140401 Molecular Biology And Genetics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 4th Sem New 2140401 Molecular Biology And Genetics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2140401 Date:25/05/2019
Subject Name: Molecular Biology and Genetics
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
1. Figures to the right indicate full marks.



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MARKS

Q.1 (a) What is role of primer in the process of replication? 3
(b) Explain genetic linkage. 4
(c) Write a note on semi conservative mode of replication. 7

Q.2 (a) What do you mean by gene? 3
(b) What is monocistronic and polycistronic mRNA? 4
(c)
How was it proved that DNA is genetic material in prokaryotes?
Explain
7
OR
(c) Explain Mendel?s law of segregation with a suitable illustration. 7
Q.3 (a) What are promotors. 3
(b) Compare epistasis and dominance. 4
(c) Give the detailed account of enzymes used in replication. 7
OR
Q.3 (a) Enlist different proteins participating in DNA replication initiation. 3
(b) Write a short note on pleiotropy. 4
(c) Explain in detail about epistasis. 7

Q.4 (a) What is role of t-RNA and draw its general structure. 3
(b) What is the reason for amazing accuracy of replication? Explain. 4
(c) Explain post transcriptional processing of tRNA 7
OR
Q.4 (a) What is the role of promoter in transcription? 3
(b) Write a short note on RNA polymerase. 4
(c) Discuss about post transcriptional modifications. 7

Q.5 (a) What are Okazaki fragments? 3
(b)
Explain and represent schematically the ?formation of initiation
complex in bacteria? during protein synthesis.
4
(c) Give the overview of five stages of protein synthesis. 7
OR
Q.5 (a) What do you mean by redundancy of genetic code? 3
(b) Explain the wobble hypothesis? 4
(c) Write a detailed note about post translational modification. 7
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