Explain the mode of action of bt toxin on insects -Science

Explain the mode of action of bt toxin on insects -Science
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In Bt cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to(a) action of gut microorganisms (b) presence of conversion factors in insect gut (c) alkaline pH of the insect gut (d) acidic pH of the insect gut.

Description : In Bt cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to (a) action of gut microorganisms (b) presence of conversion factors in insect gut (c) alkaline pH of the insect gut (d) acidic pH of the insect gut.

Last Answer : (c) alkaline pH of the insect gut

What is true about Bt toxin? (a) Bt protein exists as active toxin in the Bacillus. (b) The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication. (c) The concerned Bacillus has antitoxins. (d) The inactive protoxin gets converted into active form in the insect gut.

Description : What is true about Bt toxin? (a) Bt protein exists as active toxin in the Bacillus. (b) The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication. ... Bacillus has antitoxins. (d) The inactive protoxin gets converted into active form in the insect gut.

Last Answer : (d) The inactive protoxin gets converted into active form in the insect gut.

Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to (a) insect pests (b) fungal diseases (c) plant nematodes (d) insect predators.

Description : Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to (a) insect pests (b) fungal diseases (c) plant nematodes (d) insect predators.

Last Answer : (a) insect pests

Bt” toxin is :

Description : 10. Bt” toxin is : (a) Intracellular lipid (b) Intracellular crystalline protein (c) Extra cellular crystalline protein (d) Lipid

Last Answer : (b) Intracellular crystalline protein

ADP ribosylation is the mode of action of (A) Cholera toxin (B) Acetyl choline (C) Muscerinic receptors (D) Cyclic AMP

Description : ADP ribosylation is the mode of action of (A) Cholera toxin (B) Acetyl choline (C) Muscerinic receptors (D) Cyclic AMP

Last Answer : Answer : A

Neostigmine is beneficial in cobra envenomation because: A. It binds to and inactivates cobra toxin B. It reverses coma due to cobra toxin C. It counteracts the cardio-depressant action of cobra toxin D. It antagonizes the paralysing action of cobra toxin

Description : Neostigmine is beneficial in cobra envenomation because: A. It binds to and inactivates cobra toxin B. It reverses coma due to cobra toxin C. It counteracts the cardio-depressant action of cobra toxin D. It antagonizes the paralysing action of cobra toxin

Last Answer : D. It antagonizes the paralysing action of cobra toxin

Neostigmine is beneficial in cobra envenomation because: A. It binds to and inactivates cobra toxin B. It reverses coma due to cobra toxin C. It counteracts the cardio-depressant action of cobra toxin D. It antagonizes the paralysing action of cobra toxin

Description : Neostigmine is beneficial in cobra envenomation because: A. It binds to and inactivates cobra toxin B. It reverses coma due to cobra toxin C. It counteracts the cardio-depressant action of cobra toxin D. It antagonizes the paralysing action of cobra toxin

Last Answer : D. It antagonizes the paralysing action of cobra toxin

Uricotelic mode of excreting nitrogenous wastes is found in (a) reptiles and birds (b) birds and annelids (c) amphibians and reptiles (d) insects and amphibians.

Description : Uricotelic mode of excreting nitrogenous wastes is found in (a) reptiles and birds (b) birds and annelids (c) amphibians and reptiles (d) insects and amphibians.

Last Answer : (a) reptiles and birds

Does peanut butter contain a toxin, or toxic fungus?

Description : Does peanut butter contain a toxin, or toxic fungus?

Last Answer : Yes! Aflatoxin. There’s a lot of information on this but here’s a start!

What is oxidant and toxin and how to recognize it?

Description : What is oxidant and toxin and how to recognize it?

Last Answer : The oxidizer receives the electron and the oxidant donates. In short , remember (awake scholar)

What is Toxin ?

Description : What is Toxin ?

Last Answer : : Toxins are toxins or toxins and toxins are toxic or poisonous. This toxin enters the body over a long period of time and infects various internal organs. In addition to food or chemicals ... an animal or organism and gradually produces antibodies against the organism and the animal's body. Thanks.

Drugs & Toxin are mainly excreted by which process `:-`

Description : Drugs & Toxin are mainly excreted by which process `:-`

Last Answer : Drugs & Toxin are mainly excreted by which process `:-` A. Ultra filtration B. Digestion in the form of excreta C. Tubular secretion D. Diffusion

What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Description : What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Last Answer : Need answer

What toxin causes loss of gag reflex and eye movement problems?

Description : What toxin causes loss of gag reflex and eye movement problems?

Last Answer : Need answer

Stool C. difficile toxin?

Description : Stool C. difficile toxin?

Last Answer : DefinitionThe stool C. difficile toxin test detects harmful substances produced by the bacterium Clostridium difficile(C. difficile) in a stool sample. This infection is a common cause of diarrhea after antibiotic ... .How to prepare for the testThere are many ways to collect the samples. You can ca

Toxin?

Description : Toxin?

Last Answer : DefinitionMillipedes are worm-like bugs called arthropods. Certain types of millipedes release a harmful substance (toxin) if they are threatened or if you handle them roughly. Millipedes can squirt ... burning or itching of skinBlistersIf the millipede toxin gets in the eyes, symptoms may include

Toxin?

Description : Toxin?

Last Answer : DefinitionMillipedes are worm-like bugs called arthropods. Certain types of millipedes release a harmful substance (toxin) if they are threatened or if you handle them roughly. Millipedes can squirt ... burning or itching of skinBlistersIf the millipede toxin gets in the eyes, symptoms may include

Mitochondrial protein synthesis is inhibited by (A) Cycloheximide (B) Chloramphenicol (C) Diptheria toxin (D) None of these

Description : Mitochondrial protein synthesis is inhibited by (A) Cycloheximide (B) Chloramphenicol (C) Diptheria toxin (D) None of these

Last Answer : Answer : B

Diphtheria toxin inhibits (A) Prokaryotic EF-1 (B) Prokaryotic EF-2 (C) Eukaryotic EF-1 (D) Eukaryotic EF-2

Description : Diphtheria toxin inhibits (A) Prokaryotic EF-1 (B) Prokaryotic EF-2 (C) Eukaryotic EF-1 (D) Eukaryotic EF-2

Last Answer : Answer : D

All of the following statements about hypoglycin are true except (A) It is a plant toxin (B) It causes hypoglycaemia (C) It inhibits oxidation of short chain fatty acids (D) It inhibits oxidation of long chain fatty acids

Description : All of the following statements about hypoglycin are true except (A) It is a plant toxin (B) It causes hypoglycaemia (C) It inhibits oxidation of short chain fatty acids (D) It inhibits oxidation of long chain fatty acids

Last Answer : Answer : A

Several children at a summer camp were hospitalized with symptoms thought to be due to ingestion of food containing botulinum toxins. The effects of botulinum toxin are likely to include (a) Bronchospasm (b) Cycloplegia (c) Diarrhea (d) Skeletal muscle spasms (e) Hyperventilation

Description : Several children at a summer camp were hospitalized with symptoms thought to be due to ingestion of food containing botulinum toxins. The effects of botulinum toxin are likely to include (a) Bronchospasm (b) Cycloplegia (c) Diarrhea (d) Skeletal muscle spasms (e) Hyperventilation

Last Answer : Ans: B

Which of the following is activated by Cholera toxin? 1) Adenylate cyclase 2) Guanlyate cyclase 3) Peroxisome proliferator receptor (PPAR) gamma 4) Sodium/potassium ATPase 5) The glucose-sodium transporter

Description : Which of the following is activated by Cholera toxin? 1) Adenylate cyclase 2) Guanlyate cyclase 3) Peroxisome proliferator receptor (PPAR) gamma 4) Sodium/potassium ATPase 5) The glucose-sodium transporter

Last Answer : Answers-1 Cholera toxin activates adenylate cyclase with generation of cAMP.

What is the disease caused by toxin producing strains of Staphylococcus aureus ?

Description : What is the disease caused by toxin producing strains of Staphylococcus aureus ?

Last Answer : Toxic shock syndrome

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein (a) binds with epithelial cells of midgut of the insect pest ultimately killing it (b) is coded by several genes including the gene cry (c) is activated by acid pH of the foregut of the insect pest (d) does not kill the carrier bacterium which is itself resistant to this toxin.

Description : Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein (a) binds with epithelial cells of midgut of the insect pest ultimately killing it (b) is coded by several ... pest (d) does not kill the carrier bacterium which is itself resistant to this toxin.

Last Answer : (a) binds with epithelial cells of midgut of the insect pest ultimately killing it

What triggers activation of protoxin to active toxin of Bacillus thuringiensis in bollworm? (a) Acidic pH of stomach (b) Body temperature (c) Moist surface of midgut (d) Alkaline pH of gut

Description : What triggers activation of protoxin to active toxin of Bacillus thuringiensis in bollworm? (a) Acidic pH of stomach (b) Body temperature (c) Moist surface of midgut (d) Alkaline pH of gut

Last Answer : (d) Alkaline pH of gut

Match each disease with its correct type of vaccine. Column I Column II A. Tuberculosis (i) Harmless virus B. Whooping cough (ii) Inactivated toxin C. Diphtheria (iii)Killed bacteria D. Polio (iv) Harmless bacteria (a) A-(iv), B-(iii), C-(ii), D-(i) (b) A-(i), B-(ii), C-(iv), D-(iii) (c) A-(ii), B-(i), C-(iii), D-(iv) (d) A-(iii), B-(ii), C-(iv), D-(i)

Description : Match each disease with its correct type of vaccine. Column I Column II A. Tuberculosis (i) Harmless virus B. Whooping cough (ii) Inactivated toxin C. Diphtheria (iii)Killed bacteria D. Polio (iv) Harmless bacteria (a) A-(iv), B-(iii), C- ... B-(i), C-(iii), D-(iv) (d) A-(iii), B-(ii), C-(iv), D-(i)

Last Answer : a) A-(iv), B-(iii), C-(ii), D-(i)

The following are true: a. heroin causes miosis by increasing the release of acetylcholine. b. botulinum toxin causes mydriasis by inhibiting the release of acetylcholine c. phenylephrine causes mydriasis by stimulating the alpha receptors d. amphetamine causes mydriasis by inhibiting noradrenaline reuptake

Description : The following are true: a. heroin causes miosis by increasing the release of acetylcholine. b. botulinum toxin causes mydriasis by inhibiting the release of acetylcholine c. ... mydriasis by stimulating the alpha receptors d. amphetamine causes mydriasis by inhibiting noradrenaline reuptake

Last Answer : phenylephrine causes mydriasis by stimulating the alpha receptors

With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres are usually longer than preganglionic parasympathetic fibres c. acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Description : With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres ... the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

ICRISAT researchers have developed strategies to keep groundnut free of which toxins? 1. Aflatoxin 2. Fungi toxin 3. Bacterial toxin 4. Both a and b

Description : ICRISAT researchers have developed strategies to keep groundnut free of which toxins? 1. Aflatoxin 2. Fungi toxin 3. Bacterial toxin 4. Both a and b

Last Answer : 4. Both a and b

Which one of the following is not an antigen? a. A toxin b. A virus c. A bacterial cell d. All (A-C) are antigens

Description : Which one of the following is not an antigen? a. A toxin b. A virus c. A bacterial cell d. All (A-C) are antigens

Last Answer : d. All (A-C) are antigens

What disease is described by: "the toxin acts at the neuromuscular junction, preventing the release of neurotransmitters needed to inhibit muscle contraction." a. Botulism b. Tetanus c. The Plague d. A-C Are Correct

Description : What disease is described by: "the toxin acts at the neuromuscular junction, preventing the release of neurotransmitters needed to inhibit muscle contraction." a. Botulism b. Tetanus c. The Plague d. A-C Are Correct

Last Answer : b. Tetanus

Which of the following disease is not caused by microbial protein toxin? A.Botulism B.Diphtheria C.Shigella dysentery D.Tuberculosis

Description : Which of the following disease is not caused by microbial protein toxin? A.Botulism B.Diphtheria C.Shigella dysentery D.Tuberculosis

Last Answer : D.Tuberculosis

A characteristic of protein synthesis in both the archaea and eukarya is A.transcription and translation are coupled B.translation is inhibited by diphtheria toxin C.proteins are synthesized from D-, rather than L-, isomers of amino acids D.the initiator tRNA is charged with N-formyl- methionine

Description : A characteristic of protein synthesis in both the archaea and eukarya is A.transcription and translation are coupled B.translation is inhibited by diphtheria toxin C.proteins are synthesized from D-, ... L-, isomers of amino acids D.the initiator tRNA is charged with N-formyl- methionine

Last Answer : C.proteins are synthesized from

A major difference between EHEC and EPEC is A.EHEC secretes a Shiga-like toxin and EPEC does not B.EHEC possesses a type III secretion system and EPEC does not C.EPEC rearranges host cell actin and EHEC does not D.EPEC passes through the placenta to infect the fetus and EHEC does not

Description : A major difference between EHEC and EPEC is A.EHEC secretes a Shiga-like toxin and EPEC does not B.EHEC possesses a type III secretion system and EPEC does not C.EPEC rearranges host cell actin and EHEC does not D.EPEC passes through the placenta to infect the fetus and EHEC does not

Last Answer : A.EHEC secretes a Shiga-like toxin and EPEC does not

What is the direct cause of cell death by diphtheria toxin? A- Formation of an ion channel in the cell membrane B- Inactivation of a translational elongation factorC- Induction of apoptosis D- None of the above

Description : What is the direct cause of cell death by diphtheria toxin? A- Formation of an ion channel in the cell membrane B- Inactivation of a translational elongation factor C- Induction of apoptosis D- None of the above

Last Answer : Inactivation of a translational elongation factor

A characteristic of protein synthesis in both the archaea and eukarya is A- transcription and translation are coupled B- translation is inhibited by diphtheria toxin C- .proteins are synthesized from D-, rather than L-, isomers of amino acids D- the initiator tRNA is charged with N-formyl-methionine

Description : A characteristic of protein synthesis in both the archaea and eukarya is A- transcription and translation are coupled B- translation is inhibited by diphtheria toxin C- .proteins are synthesized from D-, rather than L-, isomers of amino acids D- the initiator tRNA is charged with N-formyl-methionine

Last Answer : .proteins are synthesized from D-, rather than L-, isomers of amino acids

The injection of anti-toxin is given to prevent (1) Tetanus (2) Tuberculosis (3) Typhoid (4) Filariasis

Description : The injection of anti-toxin is given to prevent (1) Tetanus (2) Tuberculosis (3) Typhoid (4) Filariasis

Last Answer : (1) Tetanus

Name some plants that feed on insects. -Science-7

Description : Name some plants that feed on insects. -Science-7

Last Answer : Rafflesia/Cuscuta

Why do some plants feed on insects? -Science-7

Description : Why do some plants feed on insects? -Science-7

Last Answer : Some plats feed on insects because they grow in a type of soil which is unable to supply enough nitrogen, so to fulfill the need of nitrogen they feed on insects.

What is the name of the science related to insects ?

Description : What is the name of the science related to insects ?

Last Answer : Entomology is the name of the science related to insects .

Science volunteer teams catalog 7836 species of insects and 4922 species of spiders how many species did the volunteers catalog?

Description : Science volunteer teams catalog 7836 species of insects and 4922 species of spiders how many species did the volunteers catalog?

Last Answer : 11789

‘Entomology’ is the science that studies (1) Behaviour of human beings (2) Formation of rocks (3) Insects (4) None of these

Description : ‘Entomology’ is the science that studies (1) Behaviour of human beings (2) Formation of rocks (3) Insects (4) None of these

Last Answer : Insects

Write a note on BT Cotton.

Description : Write a note on BT Cotton.

Last Answer : BT Cotton is a genetically modified or transgenic plant. It is a new variety in which a gene isolated from a bacterium called Bacillus thuringiensis has been newly introduced. The gene us responsible for producing a toxin which can kill the boll worm that attack the cotton plants.

BT Vision users: Currently unavailable programme, on demand, but the programme only recently appeared. Anyone had this problem before, or know what the problem is?

Description : BT Vision users: Currently unavailable programme, on demand, but the programme only recently appeared. Anyone had this problem before, or know what the problem is?

Last Answer : answer:Since I’m not familiar with BT Vision, here is the help section of their site. http://bt.custhelp.com/app/home

How is the palish views and privacy and BT?

Description : How is the palish views and privacy and BT?

Last Answer : Can you define some of your terms? I’m not a techy so maybe it makes more sense to others. I assume BT is British Telecom? What do you mean by “palish views”?

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Description : How do you get two BT home hubs working on the same connection?

Last Answer : I know this is not needed to answer your question, but why do you want the two computers to be a wired connection?

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Description : I want a portfolio site. Bt I am a total noob when it comes to web knowledge. What do I need to contemplate?

Last Answer : answer:I’d recommend that you get your own domain, perhaps http://yourname.com if it is available. Check out this thread for more information about web hosting. Any host worth their salt will have little to no downtime. What is going in your portfolio? What are you planning on putting online?

What are Bt crops? -Biology

Description : What are Bt crops? -Biology

Last Answer : answer:

In what year is City BT signed ?

Description : In what year is City BT signed ?

Last Answer : City BT was signed in 1997.

What is the full form of BT ?

Description : What is the full form of BT ?

Last Answer : Blood Transfusion & Bleeding Time .