M.Sc. (Semester III) (CBCS) Examination Mar/Apr-2018
Environmental Science
ENVIRONMENTAL BIOTECHNOLOGY
Time 2½ Hour
Max. Marks: 70
Instructions: Answer any Five Question. All Questions carry equal marks. Question No. 1 is Compulsory. Attempt any two questions from Q.No.2, 3 and 4. Attempt any two short notes from Q.No.5, 6 and 7. Draw neat and labeled diagrams wherever necessary.
Q.1
Select the answer among the following
14
Transgenic means
Of the third generation
New variety
Incorporation of new DNA into germ line
None of the above
Cryopreservation using liquid nitrogen is done at




Microbes can be used in
Dye removal
BOD removal
Biogas generation
All of the above
First cloned animals is
Dog
Mule
Sheep
Cat
The extra chromosomal DNA is called as
Clone
Plasmid
Gene
None of these
Which of the following bacteria is called superbug which could clean the oil?
Bacillus subtilus
Pseudomonas putida
Pseudomonas denitrificans
Bacillus denitrificans
Which of the following is not present in the bacteria?
RNA
Cell wall
Flagella
Mitochondria
Bacteria used in biogas generation are
Halogens
Methanogens
Cyanobacteria
Vibrio cholarae
The removal of Nitrate from waste water helps to prevent
Biomagnifications
Atrophication
Eutrophication
None of the above
Page 2 of 2
SLR-UI-368
10) "Xenobiotics"
Any chemicals that contain carbon
Products used for the biological control of pests
Special soil amendments favored in organic farming
Synthetic organic compounds not found in nature
11) is an example of fungal biopesticides.
Trichoderma sp.
B. Thuringiensis
E.coli
None of these
12) is a nitrogen fixing bacteria with leguminous plants.
Azolla
Anabaena
Rhizobium
None of these
13) Halophytes plants grow in
Red soil
Black soil
Yellow soil
Saline soil
14) Following is one of the process in bioremediation
Bioventing
Rhizofiltration
Biosparging
All of the above
Q.2
Give a short account of scope of environment biotechnology with suitable examples.
14
Q.3
Explain in detail the role of biological filtration process. Also, give an account on biotrickling and bioscrubbers.
14
Q.4
Elaborate the difference in between Prokaryotic cell and Eukaryotic cell with suitable diagram.
14
Q.5
Write note on:
14
Bioremediation of soil
Microbial growth and substrate utilization kinetics
Q.6
Explain in brief:
14
Microbial pesticide
Insect as biocontrol
Q.7
Write an account on:
14
Applications of genetically modified microorganisms
Role of microorganisms in wastewater treatment