M.Sc. (Semester (CBCS) Examination Nov/Dec-2018
Biotechnology
MICROBIOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figures to the right indicate full marks.
Q.1 Choose the correct option and rewrite the sentence:- 14
Influenza virus binds to of the host cell membrane.
Omp Sialic acid receptor
Polysaccharides Glycoproteins
Electron microscope was discovered by
Ernst Ruska Robert Hook
Stanley Michael Tswett
The number of ascospores in an ascus of Ascomycetes is
2 8
varies with species 16
A variant of bacterial strain with biochemical and physiological differences is
called as
Morphovar Biovar
Serover Virovar
In Gram's staining method can be used as a secondary stain.
Gram's Iodine Congo Red
Basic Fuchsin Malachite Green
A protein called as bacteriorhodopsin is produced by
Alkalophiles Barophiles
Halophiles Metallophiles
Archae bacteria show linkage between fatty acids and glycerol
in cell membrane.
Ether Ester
Covalant Ionic
The method for preservation of biological component by dehydrating at lower
temperature is called as
Liquid nitrogen method Cryopreservation
Lyophilization Sub culturing
HIV infects its host by attacking cells.
Epithelial Neural Cells
RBCs T4 helper
10) The symbiotic association between fungi and roots of higher plants is called
as
Lichens Rhizopus
Mycorrhiza Fungirrhiza
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SLR-VE-70
11) Serial dilution technique was discovered by
Robert Koch Fransisco Redi
Joseph Lister Louis Pasteur
12) Out of the following cannot be used for viral vaccine production.
Embryonatedegg Diploid cell line
Live animal Continuous cell line
13) The vegetative stage of fungi shows
Haploid Diploid
Triploid Polyploid
14) is specifically present in bacterial endospore.
Peptidoglycan Lipopolysaccharide
Calcium dipicolinic acid Proteins
Q.2 Answer the following any four:-
1. Define lysogenic phage with 2 examples.
2. Write molecular adaptations of xerophiles.
3. Mechanism of action of UV radiation on living cells.
4. Define mycotoxins with 2 examples.
5. Write the composition of crystal violet stain with function of chromophore
and Auxochrome.
08
Write note on (Any
1. Write a note on Bergey's Manual.
2. Write traditional methods of prokaryotic identification.
3. Explain structure of influenza virus
06
Q.3 Answer the following (Any
1. How to isolate the bacteria from mixed population?
2. Write short note on basidiomycetes.
3. Describe mangnetotactic bacteria.
08
Answer the following (Any
1. Give Industrial application of fungi.
2. Write a note Numerical taxonomy.
06
Q.4 Answer the following (Any
1. Give account on molecular adaptations in psychrophiles.
2. Describe capsule staining.
3. Explain isolation of viruses
10
Answer the following (Any
1. Write a note on Thermophiles.
2. Explain PHYLIP software.
04
Q.5 Answer the following (Any 14
Give a brief account of photosynthetic bacteria.
Explain lytic cycle using examples of T4.
Explain in detail about Polyphasic Taxonomy.