Q. No.The common nitrogen fixer in paddy fields is:
1.
Frankia
2.
Rhizobium
3.
Azospirillum
4.
Oscillatoria
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The most common substrate used in distilleries for the production of ethanol is
1. Molasses
2. Corn meal
3. Soya meal
4. Ground gram
Ethanol is commercially produced through a particular species of
1. Aspergillus
2. Saccharomyces
3. Clostridium
4. Trichoderma
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Which one of the following is not a biofertilizer?
1. Mycorrhiza
2. Agrobacterium
3. Rhizobium
4. Nostoc
An organism used as biofertilizer for raising soyabean crop is
1. Nostoc
2. Azotobacter
3. Azospirillum
4. Rhizobium
Which one of the following helps in the absorption of phosphorus from soil by plants?
1. Anabaena
2. Glomus
3. Rhizobium
4. Frankia
Read the following statement having two blanks (A and B):
“A drug used for _______ (A) ________ patients is obtained from a species of the organism _________ (B) _________.”
The one correct option for the two blanks is:
|
Blank-A |
Blank-B |
|
|
1 |
AIDS |
Pseudomonas |
|
2 |
Heart |
Penicillium |
|
3 |
Organ-transplant |
Trichoderma |
|
4 |
Swine flu |
Monascus |
Yeast is used in the production of
1. Bread and beer.
2. Cheese and butter.
3. Citric acid and lactic acid.
4. Lipase and pectinase.
Read the following four statements (a-d):
| a. | Colostrum is recommended for the new born because it is rich in antigens. |
| b. | Chikungunya is caused by a Gram-negative bacterium. |
| c. | Tissue culture has proved useful in obtaining virus-free plants. |
| d. | Beer is manufactured by distillation of fermented grape juice. |
How many of the above statements are wrong?
| 1. | Four | 2. | One |
| 3. | Two | 4. | Three |
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