Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
1. Aspergillus niger – citric acid
2. Yeast – statins
3. Acetobacter aceti – acetic acid
4. Clostridium butylicum – lactic acid

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:

An example of endomycorrhiza is:

1. Glomus

2. Agaricus

3. Rhizobium

4. Nostoc

Domestic sewage in large cities:

In gobar gas, the maximum amount is that of:

1.  Methane 

2.  Propane 

3.  Carbon dioxide 

4.  Butane 

Curing of tea leaves is brought by the activity of:

1. bacteria

2. mycorrhiza

3. viruses

4. fungi

Which one of the following pairs is wrongly matched?

1. Methanogens - Gobar gas

2. Yeast - Ethanol

3. Streptomycetes - Antibiotic

4. Coliforms - Vinegar

Probiotics are:

1. safe antibiotics

2. cancer inducing microbes

3. new kind of food allergens

4. live microbial food supplement

A genetically engineered micro-organism used successfully in the bioremediation of oil spills is a species of:

1. Pseudomonas

2. Trichoderma

3. Xanthomonas

4. Bacillus