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 

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 

Which one of the following pairs is wrongly matched?  
1. Textile - amylase 
2. Detergents - lipase
3. Alcohol - nitrogenase
4. Fruit juice - pectinase 

Which of the following is not used as a biopesticide?  
1. Xanthomonas campestris 
2. Bacillus thuringiensis
3. Trichoderma harzianum
4. Nucleopolyhedrovirus 

Select the correct statement from the following: 
1. Biogas commonly called gobar gas is pure methane
2. Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
3. Biogas is produced by the activity of aerobic bacteria on animal waste
4. Methanobacterium is an aerobic bacterium found in rumen of cattle