Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                 Column II
(GM microbe)                           (Application)
I. Rhizobium meliloti                 1. Prevention of frost damage
II. Pseudomonas                       2. Nitrogen fixation in fluorescence cereals
III. Pseudomonas putida            3. Scavenging of oil spills
IV. Trichoderma                         4. Biocontrol of fungal diseases
Codes:
      I   II   III   IV
A.   1   2    3     4
B.   2   1   4      3
C.   2   1   3      4
D.   1   2   4      3

Subtopic:  Microbes in Biocontrol Agent |
 69%
Level 2: 60%+
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In the given diagram, the gas X can be:

1. Hydrogen sulfide 2. Carbon monoxide
3. Ammonia 4. Oxygen
Subtopic:  Microbes in Production of Biogas |
 84%
Level 1: 80%+
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The virus shown here is a causative agent of:

1. Intestinal infections
2. Respiratory infections
3. CNS infections
4. Genito-urinary infections
Subtopic:  Industrial Products, Beverages & Antibiotics |
 90%
Level 1: 80%+
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Nitrogen fixation is carried out by:

1.  bacteria 2.  fungi
3.  protists 4.  algae

Subtopic:  Microbes as Biofertilizer |
 82%
Level 1: 80%+
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Which one of the following impurities is easiest to remove from wastewater?

1. Bacteria 2. Colloids
3. Dissolved solids 4. Suspended solids
Subtopic:  Microbes in Sewage Treatment |
 83%
Level 1: 80%+
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Match the following list of bioactive substances and their roles:
Bioactive Substances: -
(i) Statins (ii) Cyclosporin A (iii) Streptokinase (iv) Lipase

Role-
A. Removal of oil stains
B. Removal of clots from blood vessels
C. Lowering of blood cholesterol
D. Immuno-suppressive agent

Choose the correct match:

1. i B, ii C, iii A, iv D

2. i D, ii B, iii A, iv C

3. i B, ii A, iii D, iv C

4. i C, ii D, iii B, iv A

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 91%
Level 1: 80%+
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Match the items in Column ‘A’ and Column ‘B’ and choose correct answer:   

Column A

Column B

(i) Lady bird

(A) Methanobacterium

(ii) Mycorrhiza

(B) Trichoderma

(iii) Biological control

(C) Aphids

(iv) Biogas

(D) Glomus

           

The correct answer is:

1. i B, ii D, iii C, iv A     

2. i C, ii D, iii B, iv A

3. i D, ii A, iii B, iv C         

4. i C, ii D, iii A, iv A

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules | Microbes in Production of Biogas | Microbes in Biocontrol Agent |
 84%
Level 1: 80%+
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Mycorrhiza does not help the host plant in:

1. Enhancing its phosphorus uptake capacity

2. Increasing its tolerance to drought

3. Enhancing its resistance to root pathogens

4. Increasing its resistance to insects

Subtopic:  Microbes as Biofertilizer |
 76%
Level 2: 60%+
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Biological Pest Control methods are more preferably used because-

1. Chemical pesticides are discriminate

2. Predators work through check and balance

3. Predators are indiscriminate

4. All of above

Subtopic:  Microbes in Biocontrol Agent |
Level 3: 35%-60%
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Which of the following statement is incorrect?

1. Trichoderma is free living fungi, present in root ecosystem acts as biocontrol agent

2. Genus of baculoviruses is species group specific broad spectrum insecticide

3. All harmful insect pests should be kept at manageable level as it furthers biodiversity

4. Ladybird and Dragonflies are used as biocontrol agent

Subtopic:  Microbes in Biocontrol Agent |
 85%
Level 1: 80%+
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