Home
Class 12
BIOLOGY
Movement of pollen tube towards embryo s...

Movement of pollen tube towards embryo sac is

A

thigmotactic

B

thermotactic

C

chemotropic

D

phototropic

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RESPIRATION IN PLANTS

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|195 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

    TRUEMAN BIOLOGY|Exercise MCQ|220 Videos

Similar Questions

Explore conceptually related problems

Pollen tube enters the embryo sac usually

The growth of pollen tubes towards ovules is the example of :

[A]: The three cells of the egg apparatus are arranged in a triangular fashion. [R): The degenerating synergid forms the seat for pollen tube discharge in the embryo sac

The arrangement of the nuclei in a normal embryo sac in the dicot plants is

The movement of a plant towards the direction of light is called ………………..

The number of antipodals cells in the matured embryo sac is

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. In angiosperms, triple fusion produces

    Text Solution

    |

  2. In angiosperm, syngamy or true fertilization refers to

    Text Solution

    |

  3. Movement of pollen tube towards embryo sac is

    Text Solution

    |

  4. Germination of pollen grain on the stigma is

    Text Solution

    |

  5. At the time of entering embryo sac the pollen tube contains

    Text Solution

    |

  6. Doubles fertilization is fusion of

    Text Solution

    |

  7. Route used by pollen tube for entering ovule is

    Text Solution

    |

  8. Write the significance of double fertilization.

    Text Solution

    |

  9. The second fertilization in angiosperms is known as

    Text Solution

    |

  10. Entry of pollen tube through micropyte while reaching the embryo sac...

    Text Solution

    |

  11. When pollen tube enters by integuments then the process is called

    Text Solution

    |

  12. In angiosperms, pollen tube liberates its male gamets into:

    Text Solution

    |

  13. Total number of nuclei involved in double fertilization is

    Text Solution

    |

  14. Pollen tube enters the embryo sac usually

    Text Solution

    |

  15. Development of embryo in angiosperm is

    Text Solution

    |

  16. The wheat grain/maize grain has an embryo with one, large, shield shap...

    Text Solution

    |

  17. Pollination is stimulus necessary for the fruit development. It can be...

    Text Solution

    |

  18. Ovule integument gets tranformed into

    Text Solution

    |

  19. Endosperm in angiosperms is formed from secondary nucleus

    Text Solution

    |

  20. Endosperm of angiosperms is different from that of gymnosperms becaus...

    Text Solution

    |