347631
Identify the correct statement about Bt toxin?
1 Bt toxin on mid-gut epithelial cells, creates pores, leading to swelling and lysis
2 Bt is produced by a prokaryote
3 \(\mathrm{Bt}\) is produced in its inactive state
4 All of these
Explanation:
All of them are correct
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347632
Cultivation of the \(B t\) cotton is in news. What does \(B t\) means?
1 Carrying an endotoxin gene from Bacillus thuringiensis
2 Barium treated cotton seeds
3 Produced by biotechnology using Recombinant DNA Technology
4 Bigger thread variety of cotton
Explanation:
Bacillus thuringiensis is in short called as \(B t\).
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347633
A protoxin is
1 A denatured toxin
2 inactive toxin
3 Primitive toxin
4 An active toxin
Explanation:
Protoxin is a inactive toxin or a chemical compound which becomes toxin only after it is altered.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347634
Why does the toxin in protein crystals of Bacillus thuringiensis not kill the bacteria?
1 It is produced as protoxin which gets activated to toxin in the human gut
2 The toxin gets activated to protoxin in the insect gut
3 It is produced as protoxin which gets activated to toxin in the insect gut
4 The protoxin needs a acidic medium to become active
Explanation:
Some strains of Bacillus thuringiensis (Bt) will produce a protein that will kill certain groups of insects (Lepidopterans, Coleopterans and dipterans). Bt will form some protein crystals which will contain an insecticidal protein which will exist as an inactive protoxin. When the insect ingests the inactive toxin in the alimentary canal of the insect in an alkaline \(\mathrm{pH}\), the inactive protoxin is converted into an active form of toxin.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347635
The activated \(\mathrm{Bt}\) toxin binds to the surface of midgut epithelial cells and eventually causes death of the insect by
1 Creating pores in the gut cells
2 Causing cell swelling in the gut cells
3 Causing lysis of the gut cells
4 All of these
Explanation:
The activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
347631
Identify the correct statement about Bt toxin?
1 Bt toxin on mid-gut epithelial cells, creates pores, leading to swelling and lysis
2 Bt is produced by a prokaryote
3 \(\mathrm{Bt}\) is produced in its inactive state
4 All of these
Explanation:
All of them are correct
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347632
Cultivation of the \(B t\) cotton is in news. What does \(B t\) means?
1 Carrying an endotoxin gene from Bacillus thuringiensis
2 Barium treated cotton seeds
3 Produced by biotechnology using Recombinant DNA Technology
4 Bigger thread variety of cotton
Explanation:
Bacillus thuringiensis is in short called as \(B t\).
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347633
A protoxin is
1 A denatured toxin
2 inactive toxin
3 Primitive toxin
4 An active toxin
Explanation:
Protoxin is a inactive toxin or a chemical compound which becomes toxin only after it is altered.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347634
Why does the toxin in protein crystals of Bacillus thuringiensis not kill the bacteria?
1 It is produced as protoxin which gets activated to toxin in the human gut
2 The toxin gets activated to protoxin in the insect gut
3 It is produced as protoxin which gets activated to toxin in the insect gut
4 The protoxin needs a acidic medium to become active
Explanation:
Some strains of Bacillus thuringiensis (Bt) will produce a protein that will kill certain groups of insects (Lepidopterans, Coleopterans and dipterans). Bt will form some protein crystals which will contain an insecticidal protein which will exist as an inactive protoxin. When the insect ingests the inactive toxin in the alimentary canal of the insect in an alkaline \(\mathrm{pH}\), the inactive protoxin is converted into an active form of toxin.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347635
The activated \(\mathrm{Bt}\) toxin binds to the surface of midgut epithelial cells and eventually causes death of the insect by
1 Creating pores in the gut cells
2 Causing cell swelling in the gut cells
3 Causing lysis of the gut cells
4 All of these
Explanation:
The activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
347631
Identify the correct statement about Bt toxin?
1 Bt toxin on mid-gut epithelial cells, creates pores, leading to swelling and lysis
2 Bt is produced by a prokaryote
3 \(\mathrm{Bt}\) is produced in its inactive state
4 All of these
Explanation:
All of them are correct
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347632
Cultivation of the \(B t\) cotton is in news. What does \(B t\) means?
1 Carrying an endotoxin gene from Bacillus thuringiensis
2 Barium treated cotton seeds
3 Produced by biotechnology using Recombinant DNA Technology
4 Bigger thread variety of cotton
Explanation:
Bacillus thuringiensis is in short called as \(B t\).
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347633
A protoxin is
1 A denatured toxin
2 inactive toxin
3 Primitive toxin
4 An active toxin
Explanation:
Protoxin is a inactive toxin or a chemical compound which becomes toxin only after it is altered.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347634
Why does the toxin in protein crystals of Bacillus thuringiensis not kill the bacteria?
1 It is produced as protoxin which gets activated to toxin in the human gut
2 The toxin gets activated to protoxin in the insect gut
3 It is produced as protoxin which gets activated to toxin in the insect gut
4 The protoxin needs a acidic medium to become active
Explanation:
Some strains of Bacillus thuringiensis (Bt) will produce a protein that will kill certain groups of insects (Lepidopterans, Coleopterans and dipterans). Bt will form some protein crystals which will contain an insecticidal protein which will exist as an inactive protoxin. When the insect ingests the inactive toxin in the alimentary canal of the insect in an alkaline \(\mathrm{pH}\), the inactive protoxin is converted into an active form of toxin.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347635
The activated \(\mathrm{Bt}\) toxin binds to the surface of midgut epithelial cells and eventually causes death of the insect by
1 Creating pores in the gut cells
2 Causing cell swelling in the gut cells
3 Causing lysis of the gut cells
4 All of these
Explanation:
The activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
347631
Identify the correct statement about Bt toxin?
1 Bt toxin on mid-gut epithelial cells, creates pores, leading to swelling and lysis
2 Bt is produced by a prokaryote
3 \(\mathrm{Bt}\) is produced in its inactive state
4 All of these
Explanation:
All of them are correct
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347632
Cultivation of the \(B t\) cotton is in news. What does \(B t\) means?
1 Carrying an endotoxin gene from Bacillus thuringiensis
2 Barium treated cotton seeds
3 Produced by biotechnology using Recombinant DNA Technology
4 Bigger thread variety of cotton
Explanation:
Bacillus thuringiensis is in short called as \(B t\).
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347633
A protoxin is
1 A denatured toxin
2 inactive toxin
3 Primitive toxin
4 An active toxin
Explanation:
Protoxin is a inactive toxin or a chemical compound which becomes toxin only after it is altered.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347634
Why does the toxin in protein crystals of Bacillus thuringiensis not kill the bacteria?
1 It is produced as protoxin which gets activated to toxin in the human gut
2 The toxin gets activated to protoxin in the insect gut
3 It is produced as protoxin which gets activated to toxin in the insect gut
4 The protoxin needs a acidic medium to become active
Explanation:
Some strains of Bacillus thuringiensis (Bt) will produce a protein that will kill certain groups of insects (Lepidopterans, Coleopterans and dipterans). Bt will form some protein crystals which will contain an insecticidal protein which will exist as an inactive protoxin. When the insect ingests the inactive toxin in the alimentary canal of the insect in an alkaline \(\mathrm{pH}\), the inactive protoxin is converted into an active form of toxin.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347635
The activated \(\mathrm{Bt}\) toxin binds to the surface of midgut epithelial cells and eventually causes death of the insect by
1 Creating pores in the gut cells
2 Causing cell swelling in the gut cells
3 Causing lysis of the gut cells
4 All of these
Explanation:
The activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
347631
Identify the correct statement about Bt toxin?
1 Bt toxin on mid-gut epithelial cells, creates pores, leading to swelling and lysis
2 Bt is produced by a prokaryote
3 \(\mathrm{Bt}\) is produced in its inactive state
4 All of these
Explanation:
All of them are correct
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347632
Cultivation of the \(B t\) cotton is in news. What does \(B t\) means?
1 Carrying an endotoxin gene from Bacillus thuringiensis
2 Barium treated cotton seeds
3 Produced by biotechnology using Recombinant DNA Technology
4 Bigger thread variety of cotton
Explanation:
Bacillus thuringiensis is in short called as \(B t\).
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347633
A protoxin is
1 A denatured toxin
2 inactive toxin
3 Primitive toxin
4 An active toxin
Explanation:
Protoxin is a inactive toxin or a chemical compound which becomes toxin only after it is altered.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347634
Why does the toxin in protein crystals of Bacillus thuringiensis not kill the bacteria?
1 It is produced as protoxin which gets activated to toxin in the human gut
2 The toxin gets activated to protoxin in the insect gut
3 It is produced as protoxin which gets activated to toxin in the insect gut
4 The protoxin needs a acidic medium to become active
Explanation:
Some strains of Bacillus thuringiensis (Bt) will produce a protein that will kill certain groups of insects (Lepidopterans, Coleopterans and dipterans). Bt will form some protein crystals which will contain an insecticidal protein which will exist as an inactive protoxin. When the insect ingests the inactive toxin in the alimentary canal of the insect in an alkaline \(\mathrm{pH}\), the inactive protoxin is converted into an active form of toxin.
BIOXII12: BIOTECHNOLOGY AND ITS APPLICATIONS
347635
The activated \(\mathrm{Bt}\) toxin binds to the surface of midgut epithelial cells and eventually causes death of the insect by
1 Creating pores in the gut cells
2 Causing cell swelling in the gut cells
3 Causing lysis of the gut cells
4 All of these
Explanation:
The activated toxin binds to the surface of midgut epithelial cells and create pores that cause cell swelling and lysis and eventually cause death of the insect.
