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BIO PESTICIDES TVP

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Most widely used soil bacterium in insect control is

a)

Bacillus thuringiensis

b)

Bacillus popillae

c)

Bacillus cereus

d)

Bacillus pluton

2.

Bacillus thuringiensis produces

a)

Delta Endotoxin

b)

Alpha exotoxin

c)

Beta exotoxin

d)

All

3.

Bacillus thuringiensis was discovered by

a)

Berliner

b)

Dulmage

c)

S. Ishiwata

d)

Burges

4.

Bacillus thuringiensis was first isolated from diseased larvae of

a)

American bollworm

b)

Corn borer

c)

Diamond back moth

d)

Silkworm

5.

Bacillus thuringiensis was first isolated from silkworm in

a)

1900

b)

1912

c)

1911

d)

1902

6.

Which of the following is true regarding Bacillus thuringiensis ?

a)

It is rod shaped gram positive bacteria

b)

Spore forming, crystalliferous bacteria

c)

Aerobic and facultative bacteria

d)

All the above

7.

Which of the following is true regarding Bt mode of action ?

a)

It is a stomach poison

b)

It requires alkaline gut pH

c)

It takes 3-4 days to get insect killed

d)

All the above

8.

The transgenic (Bt) vegetable which has been approved for large-scale field trials in India is

a)

Lady's finger

b)

Brinjal

c)

Tomato

d)

Potato

9.

Barnase, barstar and bar genes are used for developing genetically modified ?

a)

Brinjal

b)

Mustard

c)

Cotton

d)

None of the above

10.

The area under Bt cotton in India is about

a)

50000 ha

b)

100000 ha

c)

150000 ha

d)

200000 ha

11.

In India genetic engineering approval committee (GEAC) is responsible for monitoring of GM crops comes under ministry of

a)

Environment and forest

b)

Agriculture

c)

Fertilizers and Chemicals

d)

None of the above

12.

The largest area of a transgenic crop in the world is under

a)

Maize

b)

Soybean

c)

Cotton

d)

Rice

13.

The largest area of a Bt transgenic crop at global level is under

a)

Rice

b)

Soybean

c)

Cotton

d)

Maize

14.

The largest area under Bt cotton in India is in

a)

Maharashtra

b)

Andhra Pradesh

c)

Tamil Nadu

d)

Gujarat

15.

The share of microbial pesticides in the total world pesticide market is

a)

10-12%

b)

5-6%

c)

4-6 %

d)

1-2 %

16.

Bt cabbage is development against

a)

Diamond back moth

b)

Aphids

c)

Cabbage butterfly

d)

Cabbage head borer

17.

In the world transgenic crops commercially grown first in the year

a)

1996

b)

1997

c)

1998

d)

1999

18.

Transgenic crops commercially grown first time in India in the year

a)

2000

b)

2001

c)

2002

d)

2003

19.

Which was the first country to commercialize transgenic crops ?

a)

USA

b)

China

c)

Canada

d)

Argentina

20.

One of the Bt cotton varieties approved for commercial cultivation under north Indian conditions is

a)

MECH 12

b)

MECH 162

c)

MECH 184

d)

MRC 6304

21.

The descending order of the area of cultivation of transgenic crops for the trait specific is

a)

Herbicide tolerant > Insect resistant > Herbicide tolerant + Insect resistant > Virus resistant

b)

Insect resistant > Herbicide tolerant > Nematode resistant > Virus resistant

c)

Herbicide tolerant > Nematode resistant > Insect resistant > Virus resistant

d)

None of the above

22.

The countries leading in the commercial cultivation transgenic crops

a)

USA > Argentina > Brazil > Canada

b)

Argentina > Brazil > Canada > USA

c)

USA > China > India > Canada

d)

USA > Brazil > China' > India

23.

The descending order of area under transgenic crops

a)

Soybean > Maize > Cotton > Canola

b)

Cotton > Maize > Soybean > Rice

c)

Soybean > Cotton > Rice > Maize

d)

Soybean > Rice > Cotton > Canola

24.

Seeds of transgenic plant varieties for research purpose will be imported only through

a)

NBPGR

b)

DBT

c)

State Department of Ag.

d)

DST

25.

The second generation of Bt cotton contained genes of

a)

Cry lAc and Cry 2Ab

b)

Cry lAd and Cry 2Ab

c)

Cry lAa and Cry 2Aa

d)

Cry lAc and Cry 2Aa

26.

Bt cotton hybrids first approved by GEAC for commercial cultivation in 2002 are

a)

MECH 12, MECH 162 and MECH 184

b)

Ankur 09 and Ankur 651

c)

Bunny Bt 4 and Mallika Bt

d)

Tulasi 4 and Tulasi 117

27.

Chronological steps in the revised guidelines for the research in transgenic plants in India are

a)

Applicant - IBSC - RCGM - GEAC - Commercial release

b)

Applicant - GEAC - IBSC - IBSC - Commercial release

c)

Applicant - RCGM - GEAC - IBSC - Commercial release

d)

Applicant - RCGM - GEAC - Commercial release

28.

The only pest that has developed resistance to Bacillus thuringiensis in the field conditions

a)

Helicoverpa armigera

b)

Plutella xylostella

c)

Spodoptera litura

d)

All the above

29.

The most dominant trait under commercial cultivation transgenic crops

a)

Herbicide Tolerant

b)

Insect resistant

c)

Virus resistant

d)

Nematode resistant

30.

The virus used for the control of top shoot borer

a)

NPV

b)

GV

c)

CPV

d)

All of these

31.

Commercially granulosis virus (GV) used for the control of

a)

Chilo infuscatellus

b)

Helicoverpa armigera

c)

Spodoptera litura

d)

All the above

32.

Baculoviruses contain

a)

Single stranded DNA

b)

Double stranded DNA

c)

Single stranded RNA

d)

Double stranded RNA

33.

Nuclear polyhedrosis virus (NPV) is the most effective for control of

a)

Chilo partellus

b)

Pectionophora gossypiella

c)

Helicoverpa armigera

d)

Diacrasia obliqua

34.

Which one of the following is / are entomopathogenic fungi ?

a)

Beauveria bassiana

b)

Metarrhizium anisopliae

c)

Nomurea rileyi

d)

All the above

35.

Metarrhizium anisopliae used against sugarcane leaf hopper and rhinoceros beetle and commercially available under the trade name of

a)

Biomax

b)

Mycar

c)

Elcar

d)

None of the above

36.

Which of the following is a myco - acaricide ?

a)

Hirsutella sps.

b)

Neozygites sps.

c)

Sporothrix sp.

d)

All the above

37.

Which of the following is an obligate pathogen ?

a)

Bacillus thuringiensis

b)

Bacillus cereus

c)

Bacillus popilliae

d)

All the above

38.

Which of the following is both acaricide and insecticide ?

a)

Verticillum lecanii

b)

Bacillus thuringiensis

c)

Both a and b

d)

None of the above

39.

Which one of the following is an advantage of microbial pesticides ?

a)

They are specific

b)

Less possibility of resistance development

c)

Safe and eco - friendly

d)

All the above

40.

In baculoviruses tolerance to ultraviolet radiations can be increased by the addition of

a)

Activated charcoal

b)

Egg albumin

c)

Ranipal

d)

All the above

41.

A typical symptom of virus infection in insects is

a)

The infected larvae climb to higher position and dead larvae unusually hangs upside down

b)

The integument becomes fragile

c)

Rupture easily and emit foul smell

d)

All the above

42.

Following is a limitation in the use of Baculoviruses

a)

Lacks quick knock down affect

b)

Inactivated by sun light

c)

Early instars are more susceptible than later instars

d)

All the above

43.

In case of NPV, the number of days required from the time of insertion of virus and death of host insect is

a)

3 days

b)

4-6 days

c)

1 week

d)

1 day

44.

Neem is native to

a)

India

b)

USA

c)

China

d)

Brazil

45.

The following is commercial neem based formulation

a)

Achook

b)

Margosan-O

c)

Neemguard

d)

All the above

46.

The part of the neem which possess maximum active ingredient of insecticidal activity

a)

Leaf

b)

Roots

c)

Kernel

d)

Flowers

47.

Which of the following is a muscle poison ?

a)

Neem

b)

Ryanodine

c)

Nicotine

d)

Pyrthrins

48.

Which of the following is obtained from roots ?

a)

Sabadilla

b)

Neem

c)

Rotenone

d)

Limonene

49.

Largest producer of pyrethrum in the world is

a)

India

b)

USA

c)

Nigeria

d)

Kenya

50.

Which of the following is not correct with regard to pyrethrins ?

a)

They have quick knock down affect

b)

They are nerve poisons

c)

They are degraded by sunlight

d)

They are obtained from roots of Chrysanthemum sp.