11
Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria?
A)
Sulfur
B)
Nitrogen and phosphorus
C)
Iron
D)
Carbon
Answer & Solution
Answer: Option
B
12
Match the industrial application of the following enzymes.
Group I Group II
P. Penicillinase
1. Pharmaceutical
Q. Pectinase
2. Leather
R. Trypsin
3. Wine
S. Rennin
4. Dairy
A)
P-4, Q-3, R-1, S-2
B)
P-1, Q-3, R-2, S-4
C)
P-1, Q-2, R-3, S-4
D)
P-4, Q-2, R-3, S-1
Answer & Solution
Answer: Option
B
13
Match the commercial microbial sources in
Group I with the products in
Group II .
Group I Group II
P. Corynebacterium lilium
1. 2, 3-Butane di-ol
Q. Klebsiella oxytoca
2. Poly-β-hydroxybutyric acid
R. Aspergillus niger
3. Glutamic acid
S. Alcaligenes eutrophus
4. Citric acid
A)
P-3, Q-1, R-2, S-4
B)
P-3, Q-1, R-4, S-2
C)
P-1, Q-3, R-2, S-4
D)
P-1, Q-3, R-4, S-2
Answer & Solution
Answer: Option
B
14
Match enzymes in
Group I with their corresponding industrial application in
Group II .
Group I Group II
P. Amylase
1. Laundry detergent
Q. Invertase
2. Fruit juice clarification
R. Pectinase
3. Liquefaction of sucrose
S. Xylanase
4. Pulp and paper processing
A)
P-2, Q-3, R-4, S-1
B)
P-1, Q-3, R-2, S-4
C)
P-1, Q-2, R-3, S-4
D)
P-1, Q-4, R-2, S-3
Answer & Solution
Answer: Option
B
15
In secondary metabolism, two distinct phases - trophophase and idiophase refer, respectively, to
A)
Growth and production phase
B)
Early and late phase
C)
Primary and secondary metabolism
D)
Lag phase and log phase
Answer & Solution
Answer: Option
A
16
The two columns given below indicate some of the fermentation products and the microbial cultures used for their production. Identify the correct set of groups from the four options.
Fermentation products Microbial cultures
P. Ethanol
1. Aspergillus niger
Q. Streptomycin
2. Zymomonas mobilis
R. Citric acid
3. Streptomyces griseus
S. Cellulase
4. Trichoderma reesei
A)
P-1, Q-2, R-3, S-4
B)
P-2, Q-3, R-1, S-4
C)
P-2, Q-3, R-4, S-1
D)
P-4, Q-3, R-2, S-1
Answer & Solution
Answer: Option
B
17
Match the following marker genes in
Group I with suitable selecting agent in
Group II .
Group I Group II
P. nptII
1. Glyphosate
Q. aroA
2. Phosphinothricin
R. hpt
3. Kanamycin
S. bar
4. Hygromycin B
A)
P-1, Q-2, R-4, S-3
B)
P-3, Q-2, R-4, S-1
C)
P-2, Q-3, R-4, S-1
D)
P-3, Q-1, R-4, S-2
Answer & Solution
Answer: Option
D
18
During a positive-negative selection process, transformed animal cells expressing . . . . . . . . are killed in presence of ganciclovir in the medium.
A)
Pyruvate kinase
B)
Viral thymidine kinase
C)
Viral serine/threonine kinase
D)
Viral tyrosine kinase
Answer & Solution
Answer: Option
B
19
Microbes bring about biological transformation of xenobiotic compounds by
A)
Degradation
B)
Conjugation
C)
Detoxification
D)
All of the above
Answer & Solution
Answer: Option
D
20
Match the products in
Group I with their producer organisms in
Group II .
Group I Group II
P. Ethanol from glucose
1. Aspergillus niger
Q. Probiotics
2. Leuconostoc mesenteroides
R. Citric acid
3. Saccharomyces cerevisiae
S. Sauerkraut
4. Bifidobacterium
A)
P-1, Q-3, R-2, S-4
B)
P-3, Q-4, R-1, S-2
C)
P-3, Q-4, R-2, S-1
D)
P-1, Q-4, R-3, S-2
Answer & Solution
Answer: Option
B
