11. What causes 'Blackheart' in potato?
12. Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
13. Match List-I (Source) with List-II (Medicinal Product) and select the correct answer:
List-I
List-II
a. Poppy plant
1. Quinine
b. Bacterium
2. Morphine
c. Cinchona bark
3. Penicillin
d. Fungus
4. Tetracycline
| List-I | List-II |
| a. Poppy plant | 1. Quinine |
| b. Bacterium | 2. Morphine |
| c. Cinchona bark | 3. Penicillin |
| d. Fungus | 4. Tetracycline |
14. The oil which causes dropsy is
15. The science of producing and using plants for food, fuel, feed, fibre and fertiliser is referred to be as
16. Consider the following statements.
1. A large amount of caffeine is found in coffee seeds.
2. Alkaloid present in tobacco in nicotine.
3. Theobromine is the primary alkaloid found in cocoa and chocolate.
Which of the statements given above are true?
1. A large amount of caffeine is found in coffee seeds.
2. Alkaloid present in tobacco in nicotine.
3. Theobromine is the primary alkaloid found in cocoa and chocolate.
Which of the statements given above are true?
17. The leaf spot in the brinjal is caused by which of the following mycoplasma like organism?
18. The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called
19. 'Cod' is a variety of
20. The method not used as a biological control is
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