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Assertion : GM crops can affect human he...

Assertion : GM crops can affect human health by causing allergic reactions
Reason : Transgenes in commercial crops endanger native species. For example, Bt toxin gene expressed in pollen might endanger pollinators like Honey bees.

A

if both are true with reason being correct explanation

B

assertion true but correct explanation

C

assertion true but reason is wrong

D

both are wrong

Text Solution

Verified by Experts

The correct Answer is:
B
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Assertion: GM food which is prepared from GM crops may be more nutritous and good for health than its natural variant Reason :Bacteria present in the alimentary canal of human could take up the antibiotic resistance gene than is present in GM food. The bacteria would then become resistant to concerned antibiotic

Read the following and answer questions from Q.1. to Q.5. 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 pestresistant. 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 gene produces 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 mid guts wall of theinsects which cause them to death. Identify which of the following is not an advantage of GM crops?

Read the following and answer questions from Q.1. to Q.5. 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 pestresistant. 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 gene produces 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 mid guts wall of theinsects which cause them to death. What is true about Bt cotton crops?

DINESH PUBLICATION-PRINCIPLES AND APPLICATIONS OF BIOTECHNOLOGY-RQ
  1. How are transformants selected from nontransformants

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  2. Which of the following is not a characteristic of pBR322 vector ?

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  3. Assertion : GM crops can affect human health by causing allergic react...

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  4. Assertion : GM foods are facing widerspread resistance by the people ...

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  5. Assertion : Secondary metabolites are produced in small quantities and...

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  6. Assertion : In recombinant DNA technology, human genes are often trans...

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  7. Plasmid vector in DNA recombinant technology means

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  8. An example of gene therapy is

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  9. Which vector can clone only a small fragment of DNA

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  10. DNA polymerase is isolated from bacteria

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  11. Assertion (A) : Restriction endonucleases recognise short pallindromic...

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  12. What indicated ''A'' in give figure

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  13. In which field, application of biotechnology occurs

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  14. The cloning vectors M13 has genetic material

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  15. In the nomenclature of enzyme restriction endonuclease the Roman numer...

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  16. A desirable change in genotype of an organism is obtained by

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  17. More than 95% of transgenic animals are

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  18. Trangenic animals are generally produced for all of the following need...

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  19. Clot formation can be prevented by treatment within gene therapy

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  20. Identify a,b,c,d in the given diagram

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