June 19, 2013
CSIR Dec 2012 Preparation
1
"Superbug" was a name coined for organisms engineered for
A)antibiotic production.
B)probioticproduction.
C)hydrocarbon degradation.
D)enzyme production
E)insulin production.
2Which of the following is the easiest method of gene transfer?
A)Protoplast fusion
B)Electroporation
C)Transformation
D)Gene gun
E)Viral vectors
3Lycopene is an important antioxidant normally present in high levels in
A)artichokes.
B)bananas.
C)tomatoes.
D)oranges.
E)soybeans.
4Lyophilization is synonymous with:
A)Freeze-drying
B)Pasteurization
C)Filtration
D)Spoilage
E)Fermentation
5Continuous feed during fermentation is used to maintain
A)temperature.
B)water level.
C)product concentration.
D)substrate concentration.
E)cell number.
6Antibiotics tend to be
A)primary metabolites.
B)secondary metabolites.
C)tertiary metabolites.
D)quaternary metabolites.
E)any of the above.
7Amino acids are used as food additives for which of the following reasons?
A)As natural antibiotics
B)As natural growth inhibitors
C)For nutritive purposes
D)As antioxidants
E)As food preservatives
8_________ are microbially produced and can serve as gelling agents.
A)Amino acids
B)Biopolymer
C)Lipids
D)Polysaccharides
E)Fatty acids
9Which of the following have NOT been used in various bioconversions?
A)Unicellulr bacteria
B)Actinomycetes
C)Yeasts
D)Molds
E)Viruses
10
Which of the following best describes biodegradation?
A)A minor change in an organic molecule
B)Fragmentation of a complex organic molecule
C)Complete transformation of the organic molecule to mineral forms
D)All of the above
E)None of the above
11_______ - corroding organisms are becoming very problematic.
A)Titanium
B)Gold
C)Aluminum
D)Steel
E)Iron
12
Which of the following was/were used to increase biodegradation after the Exxon Valdez oil spell?
A)Nutrient additions
B)Chemical dispersants
C)Biosurfactant additions
D)High-pressure steam
E)All of the above
13lNonbiological foreign chemicals are termed:
A)Antibiotics
B)Probiotics
C)Prebiotics
D)Xenobiotics
E)Neurobiotics
14_____ seem to be the most efficient at degradation of nonbiological chemicals.
A)Algae
B)Animals
C)Bacteria
D)Fungi
E)Plants
15Which organism produces insecticidal activity?
A)Bacillus cereus
B)Bacsubtilis
C)Bacillus stearothermophilis
D)illus thuringiensis
E)herichia coli
16________ open frames can be typically scanned in the microarray format.
A)A few
B)Tens of
C)Hundreds of
D)Thousands of
E)Millions of
1)c
2)d
3)c
4)a
5)d
6)b
7)c
8)b
9)e
10)d
11)e
12)e
13)d
14)d
15)d
!6)d
1)c
2)d
3)c
4)a
5)d
6)b
7)c
8)b
9)e
10)d
11)e
12)e
13)d
14)d
15)d
!6)d
1)c
2)d
3)c
4)a
5)d
6)b
7)c
8)b
9)e
10)d
11)e
12)e
13)d
14)d
15)d
!6)d
1-c
2-d
3-c
4-a
5-d
6-b
7-c
8-b
9-e
10-d
11-e
12-e
13-d
14-d
15-d
16-d
1.a
2.c
3. c
4.a
5. d
hey guys...
its nice to see u ppl know the importance of discussion studies...n i would like joinin ur discussion
rbc is correct answer
answer the question please
q. which of the following cell does not exhibit replication.
a.skin cell.
b. RBC,
c. liver cell
d. WBC
1
"Superbug" was a name coined for organisms engineered for
A)
antibiotic production.
B)
probiotic production.
C)
hydrocarbon degradation.
D)
enzyme production.
E)
insulin production.
2
Which of the following is the easiest method of gene transfer?
A)
Protoplast fusion
B)
Electroporation
C)
Transformation
D)
Gene gun
E)
Viral vectors
3
Lycopene is an important antioxidant normally present in high levels in
A)
artichokes.
B)
bananas.
C)
tomatoes.
D)
oranges.
E)
soybeans.
4
Lyophilization is synonymous with:
A)
Freeze-drying
B)
Pasteurization
C)
Filtration
D)
Spoilage
E)
Fermentation
5
Continuous feed during fermentation is used to maintain
A)
temperature.
B)
water level.
C)
product concentration.
D)
substrate concentration.
E)
cell number.
6
Antibiotics tend to be
A)
primary metabolites.
B)
secondary metabolites.
C)
tertiary metabolites.
D)
quaternary metabolites.
E)
any of the above.
7
Amino acids are used as food additives for which of the following reasons?
A)
As natural antibiotics
B)
As natural growth inhibitors
C)
For nutritive purposes
D)
As antioxidants
E)
As food preservatives
8
_________ are microbially produced and can serve as gelling agents.
A)
Amino acids
B)
Biopolymers
C)
Lipids
D)
Polysaccharides
E)
Fatty acids
9
Which of the following have NOT been used in various bioconversions?
A)
Unicellular bacteria
B)
Actinomycetes
C)
Yeasts
D)
Molds
E)
Viruses
10
Which of the following best describes biodegradation?
A)
A minor change in an organic molecule
B)
Fragmentation of a complex organic molecule
C)
Complete transformation of the organic molecule to mineral forms
D)
All of the above
E)
None of the above
11
_______ - corroding organisms are becoming very problematic.
A)
Titanium
B)
Gold
C)
Aluminum
D)
Steel
E)
Iron
12
Which of the following was/were used to increase biodegradation after the Exxon Valdez oil spell?
A)
Nutrient additions
B)
Chemical dispersants
C)
Biosurfactant additions
D)
High-pressure steam
E)
All of the above
13
Nonbiological foreign chemicals are termed:
A)
Antibiotics
B)
Probiotics
C)
Prebiotics
D)
Xenobiotics
E)
Neurobiotics
14
_____ seem to be the most efficient at degradation of nonbiological chemicals.
A)
Algae
B)
Animals
C)
Bacteria
D)
Fungi
E)
Plants
15
Which organism produces insecticidal activity?
A)
Bacillus cereus
B)
Bacsubtilis
C)
Bacillus stearothermophilis
D)
illus thuringiensis
E)
herichia coli
16
________ open frames can be typically scanned in the microarray format.
A)
A few
B)
Tens of
C)
Hundreds of
D)
Thousands of
E)
Millions of