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 (OLD NCERT) |
 62%
NEET - 2006
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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 |
 93%
From NCERT
NEET - 2006
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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 (OLD NCERT) |
 86%
From NCERT
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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 (OLD NCERT) |
 91%
From NCERT
AIIMS - 2003
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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

 53%
AIIMS - 2004
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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 |
 80%
AIIMS - 2004
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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 |
 75%
AIIMS - 2005
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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 (OLD NCERT) |
 50%
AIIMS - 2006
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Somaclonal variation is seen in 

1. tissue culture grown plants

2. apomicts

3. polyploids

4. vegetatively propagated plants

Subtopic:  Plant Tissue Culture |
 93%
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Which of the following is a correct match between crop, variety and resistance to diseases ?

Subtopic:  Breeding for Disease Resistance (OLD NCERT) |
 73%
From NCERT
AIIMS - 2010
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