M.Sc. (Semester II) (CBCS) Examination Oct/Nov-2017
Biotechnology
MOLECULAR CELL PROCESSING
Day Date: Wednesday, 22-11-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions: All questions of Section I is compulsory.
Answer any Four questions from section II.
All question carry equal marks.
Answer to the Section I and Section II are to be written in the same answer
book.
Section I
Q.1 Rewrite the sentence after choosing the correct from the given 07
The phenomenon of genetic transformation was studied by
Oswald Avery Frederick Griffith
Korenberg Watson and Crick
The biologically important form of DNA that is naturally found in most
living system is
A-DNA B-DNA
Z-DNA E-DNA
The organisms which have only RNA is called
Ribotids Ribonucleotides
Genetic RNA Non genetic RNA
The length of 10 nucleotides is 34 A0 its length in mm is
340 mm 3.4 mm
0.34 mm All of these
DNA replication occurs as
Conservative Semi conservative
Dispersive Semi discontinuous
The synthesis of lagging strand takes places as
Continuous Discontinuous
Bidirectional None of these
The replicon in E. Coli is called
Ori-A Ori-C
Ori-B Ori-D
Define the terms 07
Palindromes
Primers
DNA helicase
B-DNA.
Replisome.
Shine-Dalgarno Sequences.
TATA Box
Page 2 of 2
SLR-ME-104
Section-II
Q.2 Explain in detail replication of eukaryotic DNA with a note on the different
enzymes.
14
Q.3 Write in detail about the different DNA repair mechanism. 14
Q.4 Describe briefly the process of RNA synthesis in eukaryotes. 14
Q.5 Explain the structure of Lac operon and write a note on positive regulation. 14
Q.6 Write any two from the following:- 14
Write a note on activators.
Write a note on tryptophan operon.
Write about promoters in prokaryotes.