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प्रश्न
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
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उत्तर
(B) Pusa Gaurav
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संबंधित प्रश्न
What is ‘biofortification’?
Name the following:
The semi-dwarf variety of wheat is high-yielding and disease-resistant.
List the two steps the classical plant breeding involves.
What are analogous organs? Describe with one example from the plant kingdom.
Which one of the following crop varieties correct matches with its resistance to disease?
| Variety | Resistance to disease |
| a) Pusa Komal | Bacterial blight |
| b) Pusa Sadabahar | White rust |
| c) Pusa Shubhra | Chilli mosaic virus |
| d) Brassica | Pusa swarnim |
Sugarcane which grow in North India, and which do not grow in north India.
The scientific process by which crop plants are enriched with certain desirable nutrients is called ______.
In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.
The term ‘desirable trait’ can mean different things for different plants. Justify the statement with suitable examples.
What are A, B in the following table:
| Transgenic Crop | Substance | Transgene | |
| (i) | A | Flavonoids | Chalone isomerase |
| (ii) | Rice | B | Ferritin |
