Methanogens do not produce:

1.	oxygen	2.	methane
3.	hydrogen sulfide	4.	carbon dioxide

Match the items in Column ‘A’ and Column ‘B’ and choose the correct answer:

The correct answer is:

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

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

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

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

Which one of the following pairs is not correctly matched? 
1. Serratia - Drug addiction
2. Spirulina - Single cell protein
3. Rhizobium - Biofertilizer
4. Streptomyces - Antibiotic 

A major component of gobar gas is:

For retting of jute the fermenting microbe used is  
1. Mesophilic bacteria
2. Helicobacter pylori
3. Butyric acid bacteria
4. Streptococcus lactis 

Bacillus thuringiensis (Bt) strains have been used for designing novel 
1. Bio Insecticidal plants
2. Biomineralization processes
3. Biofertilizers
4. Bio-metallurgical techniques

Which one of the following pairs is incorrectly matched?  

A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of   

1. Bacillus
2. Pseudomonas
3. Trichoderma
4. Xanthomonas

Modern detergents contain enzyme preparations of
1. Thermoacidophiles 
2. Thermophiles
3. Acidophiles
4. Alkaliphiles 

Which of the following proved effective for biological control of nematodal disease in plants? 
1. Paecilomyces lilacinus
2. Pisolithus tinctorius
3. Pseudomonas cepacia
4. Gliocladium virens