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Which of the following is incorrect with respect to Bt toxin?
  • a)
    Bt toxin does not kill the bacteria themselves because toxin proteins occur in inactive form called protoxin.
  • b)
    Toxin can kill certain insects such as dipterans, coleopterans, and lepidopterans.
  • c)
    Bt toxin is commonly used to produce herbicide–resistant GM crops.
  • d)
    When an insect ingests an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut that solubilises the protein crystals.
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is incorrect with respect to Bt toxin?a)Bt tox...
Incorrect Statement about Bt Toxin

Explanation:

Bt toxin is a protein produced by the bacterium Bacillus thuringiensis. It is commonly used in organic farming as a biopesticide to control insect pests. The toxin is highly specific and only targets certain insects, such as dipterans, coleopterans, and lepidopterans. The toxin works by binding to receptors in the gut of the insect, causing the gut cells to rupture and leading to the death of the insect.

Incorrect Statement: Bt toxin is commonly used to produce herbicide–resistant GM crops.

Explanation: This statement is incorrect because Bt toxin is not used to produce herbicide-resistant GM crops. Instead, Bt genes are inserted into GM crops to make them resistant to insect pests. This allows farmers to reduce their use of chemical pesticides, which can be harmful to the environment and human health. Bt toxin itself does not provide any resistance to herbicides.
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Which of the following is incorrect with respect to Bt toxin?a)Bt tox...
Bt toxin is commonly used to produce insecticide-resistant GM crops that can kill certain insects such as dipterans, coleopterans, and lepidopterans. Bacillus thuringiensis produces protein crystals encoded by the cry gene. This toxin exists in an inactive form called protoxins, but the inactive form gets converted into an active form in the alkaline pH of the insect gut, that solubilizes the crystals. This activated form of toxin binds to the midgut epithelial cells and create pores that causes death of the insect.
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Read the following and answer the question given below:Plants having foreign genes in their genome through genetic engineering are called transgenic plants. Genes can be incorporated either through a vector or through direct introduction of DNA. Bt cotton is a genetically modified organism which is pest resistant. It contains gene cry I Ac and cry II Ab of Bacillus thuringiensis. It is used to control lepidopterans, coleopterans and dipterans. Bt cotton can resist cotton bollworm and produce higher yields. Cry genes produce cry protein or Bt toxin. It is an endotoxin which remains as protoxin in plants and converted to active toxin after getting ingested by the insects. Alkaline pH of the insect gut solubilizes the protein crystals, the activated toxin creates pores to the midgut wall of the insects which cause them to die.Q. Some strains of Bacillus thuringiensis can kill certain insects such as _______

Read the following and answer the question given below:Plants having foreign genes in their genome through genetic engineering are called transgenic plants. Genes can be incorporated either through a vector or through direct introduction of DNA. Bt cotton is a genetically modified organism which is pest resistant. It contains gene cry I Ac and cry II Ab of Bacillus thuringiensis. It is used to control lepidopterans, coleopterans and dipterans. Bt cotton can resist cotton bollworm and produce higher yields. Cry genes produce cry protein or Bt toxin. It is an endotoxin which remains as protoxin in plants and converted to active toxin after getting ingested by the insects. Alkaline pH of the insect gut solubilizes the protein crystals, the activated toxin creates pores to the midgut wall of the insects which cause them to die.Q. Identify which of the following is not an advantage of GM crops?

Read the following and answer the question given below:Plants having foreign genes in their genome through genetic engineering are called transgenic plants. Genes can be incorporated either through a vector or through direct introduction of DNA. Bt cotton is a genetically modified organism which is pest resistant. It contains gene cry I Ac and cry II Ab of Bacillus thuringiensis. It is used to control lepidopterans, coleopterans and dipterans. Bt cotton can resist cotton bollworm and produce higher yields. Cry genes produce cry protein or Bt toxin. It is an endotoxin which remains as protoxin in plants and converted to active toxin after getting ingested by the insects. Alkaline pH of the insect gut solubilizes the protein crystals, the activated toxin creates pores to the midgut wall of the insects which cause them to die.Q. What is true about Bt cotton crops?

Read the following and answer the question given below: Plants having foreign genes in their genome through genetic engineering are called transgenic plants. Genes can be incorporated either through a vector or through direct introduction of DNA. Bt cotton is a genetically modified organism which is pest resistant. It contains gene cry I Ac and cry II Ab of Bacillus thuringiensis. It is used to control lepidopterans, coleopterans and dipterans. Bt cotton can resist cotton bollworm and produce higher yields. Cry genes produce cry protein or Bt toxin. It is an endotoxin which remains as protoxin in plants and converted to active toxin after getting ingested by the insects. Alkaline pH of the insect gut solubilizes the protein crystals, the activated toxin creates pores to the midgut wall of the insects which cause them to die. Q. Bacillus thuringiensis is a

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Which of the following is incorrect with respect to Bt toxin?a)Bt toxin does not kill the bacteria themselves because toxin proteins occur in inactive form called protoxin.b)Toxin can kill certain insects such as dipterans, coleopterans, and lepidopterans.c)Bt toxin is commonly used to produce herbicide–resistant GM crops.d)When an insect ingests an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut that solubilises the protein crystals.Correct answer is option 'C'. Can you explain this answer?
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Which of the following is incorrect with respect to Bt toxin?a)Bt toxin does not kill the bacteria themselves because toxin proteins occur in inactive form called protoxin.b)Toxin can kill certain insects such as dipterans, coleopterans, and lepidopterans.c)Bt toxin is commonly used to produce herbicide–resistant GM crops.d)When an insect ingests an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut that solubilises the protein crystals.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following is incorrect with respect to Bt toxin?a)Bt toxin does not kill the bacteria themselves because toxin proteins occur in inactive form called protoxin.b)Toxin can kill certain insects such as dipterans, coleopterans, and lepidopterans.c)Bt toxin is commonly used to produce herbicide–resistant GM crops.d)When an insect ingests an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut that solubilises the protein crystals.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect with respect to Bt toxin?a)Bt toxin does not kill the bacteria themselves because toxin proteins occur in inactive form called protoxin.b)Toxin can kill certain insects such as dipterans, coleopterans, and lepidopterans.c)Bt toxin is commonly used to produce herbicide–resistant GM crops.d)When an insect ingests an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut that solubilises the protein crystals.Correct answer is option 'C'. Can you explain this answer?.
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