What is meant by the term bio-pesticide? Name and explain the mode of action of a popular bio-pesticide.
What is meant by the term bio-pesticide? Name and explain the mode of action of a popular bio-pesticide.
Biopesticide is a pesticide which is
(a) not chemical in nature
(b) more specific in action against the pest
(c) safer for environment than chemical pesticides
A popularly known bio-pesticide is Bt toxin, which is produced by a bacterium called Bacillus thuringiensis. Bt toxin gene has been cloned from this bacterium and expressed in plants. Bt toxin protein when ingested by the insect, gets converted to its active form due to the alkaline pH of the gut. The activated toxin binds to the surface of mid gut epithelial cells and create pores that cause cell swelling and lysis and eventually kills the insect.
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Name the five key tools for accomplishing the tasks of recombinant DNA technology. Also, mention the functions of each tool.
7 months ago
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List the advantages of recombinant insulin.
7 months ago
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List the disadvantages of insulin obtained from the pancreas of slaughtered cows and pigs.
7 months ago
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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
7 months ago
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What are the various advantages of using genetically modified plants to increase the overall yield of the crop?
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