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

Column A	Column B
(i) Lady bird	(A) Methanobacterium
(ii) Mycorrhiza	(B) Trichoderma
(iii) Biological control	(C) Aphids
(iv) Biogas	(D) Glomus

           

The correct answer is:

1. i B, ii D, iii C, iv A     

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

3. i D, ii A, iii B, iv C         

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

Mycorrhiza does not help the host plant in:

1. Enhancing its phosphorus uptake capacity

2. Increasing its tolerance to drought

3. Enhancing its resistance to root pathogens

4. Increasing its resistance to insects

Biological Pest Control methods are more preferably used because-

1. Chemical pesticides are discriminate

2. Predators work through check and balance

3. Predators are indiscriminate

4. All of above

Which of the following statement is incorrect?

1. Trichoderma is free living fungi, present in root ecosystem acts as biocontrol agent

2. Genus of baculoviruses is species group specific broad spectrum insecticide

3. All harmful insect pests should be kept at manageable level as it furthers biodiversity

4. Ladybird and Dragonflies are used as biocontrol agent

Read the following four statements (I – IV), find out certain mistakes in two of them.
I: In our stomach lactic acid bacteria play beneficial role by checking growth of disease causing microbes.
II: Lactic acid bacteria produce acid that coagulates and completely digests the milk protein.
III: Lactic acid bacteria improve the nutritional quality by increasing the amount of Riboflavin
IV: Lactic acid bacteria require suitable temperature for their multiplication.
Which of the above two statements are not correct?

1. Statements I and II

2. Statement I and III

3. Statement II and III

4. Statements II and IV

Select the mis-match:

1. Monascus purpureus - Statins

2. Trichoderma polysporum - Cyclosporin-A

3. Clostridium butylicum - Citric acid

4. Streptococci - Streptokinase

Nucleopolyhedrovirus are:

1. Broad-spectrum insecticides

2. Effective against several plant pathogens

3. Harmful to non-target insects

4. Used as biological control agents

The distillation of the fermented broth is required in the formation of

A. rum               

B. beer

C. brandy           

D. whisky

1. A, B, C

2. A, C, D

3. B, C, D

4. A, B, D

Microbe used for biocontrol of pest butterfly caterpillars is

1. Bacillus thuringiensis.

2. Streptococcus species

3. Trichoderma species

4. Saccharomyces cerevisiae

A biofertilizer is

1. Cyanobacterium Anabaena in cavities of Azolla leaves.

2. Symbiotic association of Azotobacter for fixing atmospheric nitrogen.

3.Farmyard manure.

4.Green manure