Which of the following statements about methanogens is not correct?

1.	They can be used to produce biogas.
2.	They are found in the rumen of cattle and their excreta.
3.	They grow aerobically and breakdown cellulose-rich food.
4.	They produce methane gas.

Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?

1. Aspergillus and Rhizopus

2. Rhizobium and Rhizopus

3. Cyanobacteria and Rhizobium

4. Aspergillus and Cyanobacteria

For a biocontrol agent to be part of an integrated pest management, it should be:

Match the following :

Which of the following is a commercial blood cholesterol-lowering agent?

Select the correct group of biocontrol agents:

1. Nostoc, Azospirillum, Nucleopolyhedrovirus

2. Bacillus thuringiensis. Tobacco mosaic virus, Aphids

3. Trichoderma, Baculovirus, Bacillus thuringiensis

4. Oscilatoria, Rhizobium, Trichoderma

Which of the following can be used as biocontrol agent in the treatment of plant disease?

1. Lactobacillus

2. Trichoderma

3. Chlorella

4. Anabaena

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