Match the following columns and select the correct option: Column - I column - II (a) Dragonflies (i) Biocontrol agents of several plant pathogens (b) Bacillus thuringiensis (ii) Get rid of Aphids and mosquitoes (c) Glomus (iii) Narrow spectrum insecticidal applications (d) Baculoviruses (iv) Biocontrol agents of lepidopteran plant pests (v) Absorb phosphorus from soil

( a ) - ( ii ) , ( b ) - ( iv ) , ( c ) - ( v ) , ( d ) - ( iii )

( a ) - ( iii ) , ( b ) - ( v ) , ( c ) - ( iv ) , ( d ) - ( i )

( a ) - ( ii ) , ( b ) - ( i ) , ( c ) - ( iii ) , ( d ) - ( iv )

( a ) - ( ii ) , ( b ) - ( iii ) , ( c ) - ( iv ) , ( d ) - ( v )

EASY

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The majority of Baculoviruses are used as biological control agents because

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Important Questions on Microbes in Human Welfare

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

What nucleopolyhedrovirus is being used for now-a-days?

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Identify the incorrect statement with reference of Biocontrol agents:

HARD

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Name the genus of baculovirus that acts as a biological control agent in spite of being a pathogen. Justify by giving three reasons that make it an excellent candidate for the job.

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Give the scientific name of soil bacterium which produces crystalline (cry) protein. Mention one use of this protein in agriculture.

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

The microbe which is opted for narrow spectrum insecticide is ___ .

HARD

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Now-a-days the farmers preferred the natural predators of pests than chemical pesticides. Support this statement with example.

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Organic farmers prefer biological control of diseases and pests to the use of chemicals for the same purpose. Justify.

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Which Nucleopolyhedrovirus is being used for now-a-days?

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Which of the following are the measures that should be taken to protect pollinators?

I. Reducing the level of pesticides used in and around your home.

II. Encourage building butterfly gardens, and bee boards.

III. Discourage the creation of your own pollinator-friendly garden.

IV. Not to support agriculture enterprises that avoid pesticide use.

The correct combination is:

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Choose the incorrect statements from the following
I) Blue-green algae add organic matter to the soil and increase fertility
II) Fungal symbiont of Mycorrhiza facilitates absorption of nitrogen
III) Baculoviruses are not desirable in the IPM program
IV) Azospirillum and Azatobacter are free-living in the air

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

The Ladybird and Dragonflies are useful to get rid of:

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Select the correct group of biocontrol agents.

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Cry I Ac and Cry I Ab encoded proteins _____ and _____ control respectively.

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

One of the applications of biotechnology is to get pest resistant plants Justify the statement with reference to Bt. cotton.

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Explain the role of three organisms as biocontrol agents.

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Meaning of prefix 'Bt' in Bt cotton is

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

What is Nucleopolyhedrovirus being used for nowadays.

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

The agent used to control insect populations:

MEDIUM

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Match the following columns and select the correct option:

Column $- I$		column $- II$
(a)	Dragonflies	(i)	Biocontrol agents of several plant pathogens
(b)	Bacillus thuringiensis	(ii)	Get rid of Aphids and mosquitoes
(c)	Glomus	(iii)	Narrow spectrum insecticidal applications
(d)	Baculoviruses	(iv)	Biocontrol agents of lepidopteran plant pests
		(v)	Absorb phosphorus from soil

EASY

Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes as Biocontrol Agents

Which of the following can be used as a biocontrol agent in treatment of Plant diseases?

The majority of Baculoviruses are used as biological control agents because

Important Questions on Microbes in Human Welfare

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