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प्रश्न
Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton also resistant to other pests as well?
उत्तर
Bt cotton is made resistant to only certain specific taxa of pests. It is quite likely that in future, some other pests may infest these Bt cotton plants. It is similar to immunisation against smallpox which does not provide immunity against other pathogens like those that cause cholera, typhoid etc.
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संबंधित प्रश्न
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Answer the following question.
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A. GM rice
B. Rich in Vit A
C. Prevents blindness
D. Bruise resistant
Expand GMO. How is it different from a hybrid?
Gene expression can be controlled with the help of RNA. Explain the method with an example.
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RNA interference (RNAi) holds great potential as a therapeutic agent for the treatment of human diseases and as biocontrol agents in controlling pests in the field agriculture. An experiment was carried to study the use of 'RNAi' for the potential treatment of disorders of cholesterol metabolism. Some people possess genetic mutations with elevated levels of ApoB gene which predisposes them to coronary artery diseases. Lowering the amount ApoB can reduce the number of lipoproteins and lower the blood cholesterol. Tracy Zimmerman and her colleagues used RNAi in 2006 to reduce the level of ApoB in non human primates Cynomolgus monkeys. One group of monkeys were given RNAi treatment (small interfering RNAs, SiRNAs) (doses 1 mg/kg, SiRNAs), second group of monkeys were given RNAi treatment (doses 2.5 mg/kg, SiRNAs) and third group of monkeys were injected with saline. |
The results of the study are depicted in the graph below:
- How does the treatment with 2.5 mg/kg bring an effect on cholesterol metabolism when compared from 24 hours and 144 hours?
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- How is RNAi used in controlling the infection on the roots of tobacco plants by the nematode Meloidogyne incognitia?
