Crop plants grown in monoculture are:

1. low in yield

2. free from intraspecific competition

3. characterised by poor root system

4. highly prone to pests

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Triticale, the first man-made cereal crop, has been obtained by crossing wheat with: 

1. rye

2. pearl millete

3. sugarcane

4. barley

Subtopic:  Plant Breeding for Quality |
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In order to obtain virus-free plants through tissue culture the best method is:

1. protoplast culture

2. embryo culture

3. anther culture

4. meristem culture

Subtopic:  Plant Tissue Culture |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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The name of the Indian scientist associated with Green Revolution in India is

1. H.G. Khorana

2. M.S.Swaminathan

3. Homi Bhaba

4. C.N.R. Rao.

Subtopic:  Impact: Green Revolution |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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Which is Indian dwarf wheat ?

1. T.dicoccum

2. T. sphaerococcum

3. T. turgidum

4. T. aestivum

Subtopic:  Impact: Green Revolution |
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People recovering from long illness are often advised to include the alga Spirulina in their

diet because it

1. makes the food easy to digest

2. is rich in proteins

3. has antibiotic properties

4. restores the intestinal microflora.

Subtopic:  Single Cell Protein |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

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Cattle fed with spoilt hay of sweet clover which contains dicumarol

1. are healthier due to a good diet

2. catch infections easily

3. may suffer vitamin K deficiency and prolonged bleeding

4. may suffer from beri beri due to deficiency of B vitamins

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Somaclonal variation can be obtained by

(1) application of colchicine

(2) irradiation with gamma rays

(3) tissue culture

(4) hybridisation.

Subtopic:  Plant Tissue Culture |
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Somaclonal variation appears in

(1) organisms produced through somatic hybridization

(2) plants growing in highly polluted conditions

(3) apomictic plants

(4) tissue culture raised plants.

Subtopic:  Plant Tissue Culture |
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In the following table identify the correct matching of the crop, its disease and the corresponding pathogen.

Subtopic:  Breeding for Disease Resistance |
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