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Name the technology and write the procedure that can help a scientist to recover virus free sugarcane plants from diseased canes for his crop breeding experiments

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Virus free sugarcane plants ca be produced by meristem tissue culture technology. In this the explant is derived from apical or axillary meristem and is grown in a test tube under sterile conditions and containing special nutrient medium.
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Virus free plants can be develop from :

Virus free plants from a virus infected plant can be obtained through:

Scientists have succeeded in recovering healthy plants from a diseased one. (a) Name the part of the plant used as explant by the scientists. (b) Describe the procedure the scientists followed to recover the healthy palnts. (c ) Name this technology used for crop improvement

a) Name the technology that has helped the scientists to propogate on large scale the desired crops in short duration, List the steps carried out to propogate the crops by the said technique. b) How are somatic hybrids obtained?

Suggest and describe a technique through which a virus-free healthy piant can be obtained from a diseased sugarcane plant.

The assault on the purity of the environment is the price that we pay for many of the benefits of modern technology. For the advantages of automotive transportation we pay a price in smog-induced diseases, for the powerful effects of new insecticides, we pay a price in dwindling wildlife and disturbances in the relation of living things and their surroundings, for nuclear power, we risk the biological hazards of radiation. By increasing agricultural production with fertilizers, we increase water pollution. The highly developed nations of the world are not only the immediate beneficiaries of the good that technology can do, they are also the first victims of the environmental diseases that technology breeds. In the past, the environmental effects which accompanied technological progress were restricted to a small place and relatively a short time. The new hazards are neither local nor brief. Modern air pollution covers vast areas of continents. Radioactive fallout from nuclear explosions is. worldwide. Radioactive pollutants now on the Earth's surface will be found there for generations, and in the case of Carbon-14, for thousands of years. The passage emphasizes that modern technology

The assault on the purity of the environment is the price that we pay for many of the benefits of modern technology. For the advantages of automotive transportation we pay a price in smog-induced diseases, for the powerful effects of new insecticides, we pay a price in dwindling wildlife and disturbances in the relation of living things and their surroundings, for nuclear power, we risk the biological hazards of radiation. By increasing agricultural production with fertilizers, we increase water pollution. The highly developed nations of the world are not only the immediate beneficiaries of the good that technology can do, they are also the first victims of the environmental diseases that technology breeds. In the past, the environmental effects which accompanied technological progress were restricted to a small place and relatively a short time. The new hazards are neither local nor brief. Modern air pollution covers vast areas of continents. Radioactive fallout from nuclear explosions is. worldwide. Radioactive pollutants now on the Earth's surface will be found there for generations, and in the case of Carbon-14, for thousands of years. The harmful effects of modern technology are

The assault on the purity of the environment is the price that we pay for many of the benefits of modern technology. For the advantages of automotive transportation we pay a price in smog-induced diseases, for the powerful effects of new insecticides, we pay a price in dwindling wildlife and disturbances in the relation of living things and their surroundings, for nuclear power, we risk the biological hazards of radiation. By increasing agricultural production with fertilizers, we increase water pollution. The highly developed nations of the world are not only the immediate beneficiaries of the good that technology can do, they are also the first victims of the environmental diseases that technology breeds. In the past, the environmental effects which accompanied technological progress were restricted to a small place and relatively a short time. The new hazards are neither local nor brief. Modern air pollution covers vast areas of continents. Radioactive fallout from nuclear explosions is. worldwide. Radioactive pollutants now on the Earth's surface will be found there for generations, and in the case of Carbon-14, for thousands of years. With reference to the passage, the following assumptions have been made : 1. The widespread use of insecticides has caused ecological imbalance. 2. Conservation of natural flora and fauna is impossible in this age of modern technology Which of the assumptions is/are valid ?

Name the prominent south indian and north indian specieas of sugarcane used for cross breeding. List the sesired qualities of the hybrid can obtained from this cross.

MODERN PUBLICATION-STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION-REVISION EXERCISES (QUESTIONS FROM CBSE BOARD EXAMINATION)
  1. In an agricultural field there is a prevalance of the following organi...

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  2. By taking two examples how has bio-fortification helped in improving f...

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  3. Growing Spirullina on a large scale is beneficial environmental and nu...

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  4. How is somatic hybridisation carreied out? Mention one example of a so...

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  5. Name the technology and write the procedure that can help a scientist ...

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  6. What is inbreeding depression? How is it caused inorganisms? Write any...

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  7. How can crop varieties be made disease resistant to overcome food cris...

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  8. Enlist the steps involved in inbreeding of cattle. Suggest two disadva...

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  9. Describe any three potential applications of genetically modified plan...

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  10. Enumerate any six essentials of good ,effective Dairy Farm Management ...

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  11. Plant breeding technique has helped sugar industry in North india ...

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  12. (a)Name any two fowls other than chickens reared in a poultry farm. ...

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  13. (a) Write the two limitations of traditional breeding technique that l...

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  14. a) What is inbreeding depression? b) Explain the importance of "sele...

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  15. (a) Write the desirsble characters a farmer looks for in his sugarcane...

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  16. Explain out-breeding out crossing and cross-breeding practices in anim...

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  17. Differentiate between inbreeding and outbreeding in cattle. State one ...

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  18. How did the plant breeders produce suitable varieties of sugarcane for...

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  19. (a) What is inbreeding? (b) Inbreeding of cattle is carried with as ...

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  20. How is inbreeding advantageous as well as disadvantageous in cattle br...

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