Explain with the help of one example how genetically modified plants can: (a) Reduce usage of chemical pesticides (b) Enhance nutritional value of food crops
Explain with the help of one example how genetically modified plants can:
(a) Reduce usage of chemical pesticides
(b) Enhance nutritional value of food crops
(a) Reduce usage of chemical pesticides: Bt toxin is produced by a bacterium called Bacillus thuringiensis (Bt for short). Bt toxin gene has been cloned from the bacteria and been expressed in plants to provide resistance to insects without the need for insecticides; in effect created a bio-pesticide. Examples are Bt cotton, Bt com, rice, tomato, potato and soyabean etc.
(b) Enhance nutritional value of food crops: Golden rice is the transgenic variety of basmati rice which gives high yield and rich in vitamin A, so it is used in the deficiency of vitamin-A causing night blindness and skin disorder.
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Name the five key tools for accomplishing the tasks of recombinant DNA technology. Also, mention the functions of each tool.
3 years ago
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What is meant by the term bio-pesticide? Name and explain the mode of action of a popular bio-pesticide.
3 years ago
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List the advantages of recombinant insulin.
3 years ago
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List the disadvantages of insulin obtained from the pancreas of slaughtered cows and pigs.
3 years ago
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What are the various advantages of using genetically modified plants to increase the overall yield of the crop?
3 years ago
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