Statement I: | Bacterial infection by Bacillus thuringiensis can kill only caterpillar larvae. |
Statement II: | B. thuringiensis cannot kill adult moths. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStatement I: | Aphids and mosquitoes are natural pests. |
Statement II: | Lady bird and dragonflies are natural pests controllers. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch 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 mosquitoes |
(c) |
Glomus |
(iii) |
Narrow spectrum insecticidal applications |
(d) |
Baculoviruses |
(iv) |
Biocontrol agents of lepidopteran plant pests |
(v) |
Absorb phosphorus from soil |
Options: | (a) | (b) | (c) | (d) |
1. | (iii) | (v) | (iv) | (i) |
2. | (ii) | (i) | (iii) | (iv) |
3. | (ii) | (iii) | (iv) | (v) |
4. | (ii) | (iv) | (v) | (iii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following can be used as biocontrol agent in the treatment of plant disease?
1. Lactobacillus
2. Trichoderma
3. Chlorella
4. Anabaena
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor a biocontrol agent to be part of an integrated pest management, it should be:
1. | species-specific and symbiotic |
2. | free living and broad spectrum |
3. | narrow spectrum and symbiotic |
4. | species-specific and inactive on non-target organisms |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is an example of carrying out biological control of pests/diseases using microbes?
1. Trichoderma sp. against certain plant pathogens
2. Nucleopolyhedrovirus against white rust in Brassica
3. Bt-cotton to increase cotton yield
4. Ladybird beetle against aphids in mustard
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA common biocontrol agent for the control of plant diseases is:
1. Baculovirus
2. Bacillus thuringiensis
3. Glomus
4. Trichoderma
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not used as a biopesticide?
1. Bacillus thuringiensis
2. Trichoderma harzianum
3. Nucleopolyhedrovirus(NPV)
4. Xanthomonas campestris
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. bioremediation of contaminated soils
2. reclamation of wastelands
3. gene transfer in higher plants
4. biological control of soil-borne plant pathogens
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology