262461
Which of the following is a yellow mosaic virus resistant variety of Abelmoschus esculentus?
1 TN-1
2 Prabhani kranti
3 Himgiri
4 Pusa komal
Explanation:
Prabhani kranti is the yellow mosaic virus resistant variety of Abelmoschus esculentus (bhindi). The gene for disease resistance was transferred from a wild type relative with a very low yield.
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262462
Which of the following set of examples represent insect resistance due to morphological features?
1 Resistance to jassids in cotton and cereal leaf beetle in wheat
2 Stem borer resistance in maize
3 Rust resistance in wheat
4 Rot resistance in cauliflower
Explanation:
Cotton and wheat plants have hairy leaves which in turn make these crop plants resistant to jassids and cereal leaf beetle, respectively. The hairy leaf is a morphological feature (external appearance of any organism).
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262463
Cereals are the staple source of nutrition in human diet. Which of the following is a man made cereal?
1 Triticum
2 Triticale
3 Sorghum
4 Bajra
Explanation:
Triticale is a man made cereal that was developed by crossing Triticum aestivum and Secale cereale.
NCERT
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262464
Select the incorrect statement about insect pest resistance in crop plants.
1 Solid stems of wheat are not preferred by stem sawflies.
2 The presence of smooth leaves and no nectar makes the cotton varieties resistant to bollworms.
3 High aspartic acid and low nitrogen in maize impart stem borer resistance.
4 Maize varieties with high sugar content are resistant to maize stem borers.
Explanation:
Some of the maize varieties have low sugar content. Lower sugar content in these varieties makes them resistant to maize stem borer.
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STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262461
Which of the following is a yellow mosaic virus resistant variety of Abelmoschus esculentus?
1 TN-1
2 Prabhani kranti
3 Himgiri
4 Pusa komal
Explanation:
Prabhani kranti is the yellow mosaic virus resistant variety of Abelmoschus esculentus (bhindi). The gene for disease resistance was transferred from a wild type relative with a very low yield.
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262462
Which of the following set of examples represent insect resistance due to morphological features?
1 Resistance to jassids in cotton and cereal leaf beetle in wheat
2 Stem borer resistance in maize
3 Rust resistance in wheat
4 Rot resistance in cauliflower
Explanation:
Cotton and wheat plants have hairy leaves which in turn make these crop plants resistant to jassids and cereal leaf beetle, respectively. The hairy leaf is a morphological feature (external appearance of any organism).
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262463
Cereals are the staple source of nutrition in human diet. Which of the following is a man made cereal?
1 Triticum
2 Triticale
3 Sorghum
4 Bajra
Explanation:
Triticale is a man made cereal that was developed by crossing Triticum aestivum and Secale cereale.
NCERT
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262464
Select the incorrect statement about insect pest resistance in crop plants.
1 Solid stems of wheat are not preferred by stem sawflies.
2 The presence of smooth leaves and no nectar makes the cotton varieties resistant to bollworms.
3 High aspartic acid and low nitrogen in maize impart stem borer resistance.
4 Maize varieties with high sugar content are resistant to maize stem borers.
Explanation:
Some of the maize varieties have low sugar content. Lower sugar content in these varieties makes them resistant to maize stem borer.
262461
Which of the following is a yellow mosaic virus resistant variety of Abelmoschus esculentus?
1 TN-1
2 Prabhani kranti
3 Himgiri
4 Pusa komal
Explanation:
Prabhani kranti is the yellow mosaic virus resistant variety of Abelmoschus esculentus (bhindi). The gene for disease resistance was transferred from a wild type relative with a very low yield.
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262462
Which of the following set of examples represent insect resistance due to morphological features?
1 Resistance to jassids in cotton and cereal leaf beetle in wheat
2 Stem borer resistance in maize
3 Rust resistance in wheat
4 Rot resistance in cauliflower
Explanation:
Cotton and wheat plants have hairy leaves which in turn make these crop plants resistant to jassids and cereal leaf beetle, respectively. The hairy leaf is a morphological feature (external appearance of any organism).
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262463
Cereals are the staple source of nutrition in human diet. Which of the following is a man made cereal?
1 Triticum
2 Triticale
3 Sorghum
4 Bajra
Explanation:
Triticale is a man made cereal that was developed by crossing Triticum aestivum and Secale cereale.
NCERT
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262464
Select the incorrect statement about insect pest resistance in crop plants.
1 Solid stems of wheat are not preferred by stem sawflies.
2 The presence of smooth leaves and no nectar makes the cotton varieties resistant to bollworms.
3 High aspartic acid and low nitrogen in maize impart stem borer resistance.
4 Maize varieties with high sugar content are resistant to maize stem borers.
Explanation:
Some of the maize varieties have low sugar content. Lower sugar content in these varieties makes them resistant to maize stem borer.
262461
Which of the following is a yellow mosaic virus resistant variety of Abelmoschus esculentus?
1 TN-1
2 Prabhani kranti
3 Himgiri
4 Pusa komal
Explanation:
Prabhani kranti is the yellow mosaic virus resistant variety of Abelmoschus esculentus (bhindi). The gene for disease resistance was transferred from a wild type relative with a very low yield.
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262462
Which of the following set of examples represent insect resistance due to morphological features?
1 Resistance to jassids in cotton and cereal leaf beetle in wheat
2 Stem borer resistance in maize
3 Rust resistance in wheat
4 Rot resistance in cauliflower
Explanation:
Cotton and wheat plants have hairy leaves which in turn make these crop plants resistant to jassids and cereal leaf beetle, respectively. The hairy leaf is a morphological feature (external appearance of any organism).
Page 174
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262463
Cereals are the staple source of nutrition in human diet. Which of the following is a man made cereal?
1 Triticum
2 Triticale
3 Sorghum
4 Bajra
Explanation:
Triticale is a man made cereal that was developed by crossing Triticum aestivum and Secale cereale.
NCERT
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
262464
Select the incorrect statement about insect pest resistance in crop plants.
1 Solid stems of wheat are not preferred by stem sawflies.
2 The presence of smooth leaves and no nectar makes the cotton varieties resistant to bollworms.
3 High aspartic acid and low nitrogen in maize impart stem borer resistance.
4 Maize varieties with high sugar content are resistant to maize stem borers.
Explanation:
Some of the maize varieties have low sugar content. Lower sugar content in these varieties makes them resistant to maize stem borer.