Home
Class 12
BIOLOGY
Explain why Bt. cotton flowers undergo p...

Explain why Bt. cotton flowers undergo pollination by butterflies and bees in spite of using insect pest resistant?

Text Solution

Verified by Experts

Bt cotton is genetically engineered to produce a toxin which kills insect pests which eat the plant and cause damage. Bees and butterflies only forage for nectar in flowers and do not eat any part of the plant. So, do not die.
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY AND ITS APPLICATIONS

    BETTER CHOICE PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS|18 Videos

  • BIOTECHNOLOGY AND ITS APPLICATIONS

    BETTER CHOICE PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS|18 Videos

  • BIODIVERSITY AND CONSERVATION

    BETTER CHOICE PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS (MOST EXPECTED QUESTIONS 5 MARKS)|9 Videos

  • ECOSYSTEM

    BETTER CHOICE PUBLICATION|Exercise MOST EXPECTED QUESTIONS |30 Videos

Similar Questions

Explore conceptually related problems

QUESTIONS FROM CBSE BOARD EXAMINATIONS : Give the technical term for flowers pollinated by honey bees and butterflies . List any two special features of such flowers?

In case of Bt cotton how does the toxic insecticide protein produced by bacterium kill the insect pest but not the cell Bacillus thuringiensis where the toxic protein is generated?

Explain why in case of Bt. insecticide protein produced by the bacterium kill the insect pest but not the cell of bacterium?

One of the main objectives of biotechnology is to minimize the use of insecticides on cultivated crops. Explain help of a suitable example how insect resistant crops have been developed using techniques of biotechnology.

Write the mathematical relation for the resistivity of a material in terms of relaxation time, number density, mass and charge carries in it. Explain using this relation, why the resistivity of a metal increases and that of semiconductor decreases with rise in temperature.

Bt cotton is resistant to pests, such as lepidoterans, dipterans and coleopterans. Is Bt cotton also resistance to other pests as well?

Name the insect pest that is killed by the products of cryIAc. Explain how the gene makes the plant resistance to insect pest.

Short Answer Questions Three mark Each QUESTION FROM STATE BOARD EXAMINATIONS (a)Write the characteristic features of anther, pollen and stigma of wind pollinated flowers. (b) How do flowers reward their insect pollinators? Explain.

BETTER CHOICE PUBLICATION-BIOTECHNOLOGY AND ITS APPLICATIONS-SHORT ANSWER TYPE QUESTIONS
  1. What was the speciality of the milk produced by the transgenic cow Ros...

    Text Solution

    |

  2. Name some techniques used for early molecular diagnosis of pathogens a...

    Text Solution

    |

  3. Explain why Bt. cotton flowers undergo pollination by butterflies and ...

    Text Solution

    |

  4. How is PCR used to detect gene mutation in case of suspected cancer pa...

    Text Solution

    |

  5. Name the first transgenic cow.Which gene was introduced in this cow?

    Text Solution

    |

  6. Write about Flavr-Savr variety of Tomato.

    Text Solution

    |

  7. Explain how recombinant hirudin is produced.

    Text Solution

    |

  8. Write a short note on Plant Variety Protection and Farmer's Right ...

    Text Solution

    |

  9. How are the Transgenic plants useful to us?

    Text Solution

    |

  10. Write briefly about (a) Biowar, (b) Biopiracy and (c) Biopatents.

    Text Solution

    |

  11. Write briefly about (a) Genetically modified food (b) Biotechnology an...

    Text Solution

    |

  12. List the disadvantages of production of genetically modified crops.

    Text Solution

    |

  13. List the advantages of production of genetically modified crops/GMOs g...

    Text Solution

    |

  14. What are transgenic animals? Why are these animals being produced?

    Text Solution

    |

  15. Bacillus thuringiensis has great potential in biological control of p...

    Text Solution

    |

  16. Write a brief account of genetically engineered insulin? How it was pr...

    Text Solution

    |

  17. Write short note on Bt cotton.

    Text Solution

    |

  18. Explain the application of biotechnology in heatih.

    Text Solution

    |

  19. Explain the production of Bt-cotton.

    Text Solution

    |

  20. Write short note on Gene therapy.

    Text Solution

    |