Home
Class 12
BIOLOGY
A dioecious flowering plant prevents bot...

A dioecious flowering plant prevents both

A

Autogamy and xenogamy

B

Autogamy and geitonogamy

C

Geitonogamy and xenogamy

D

Cleistogamy and xenogamy.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NO IDEA

    DINESH PUBLICATION ENGLISH|Exercise Check Your Grasp|32 Videos

  • NO IDEA

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers|37 Videos

  • MOLLUSCA

    DINESH PUBLICATION ENGLISH|Exercise CYG|10 Videos

  • ORGANISMS AND THE ENVIRONMENT

    DINESH PUBLICATION ENGLISH|Exercise CYG|17 Videos

Similar Questions

Explore conceptually related problems

Flowering plants arose about

(a) Describe any two devices in a flowerings plant which prevent both autogamy and geitonogamy (b) Explain the events up to double fertialisation after the pollen tube enters one of the synergids in an ovule of an angisoperm.

A dioecious plant is

Smallest flowering plant is

State True of False (i) Light nd non sticky pollen grains are characteristic of wind pollinated floweres (ii) Dioecious conditin in plants prevents xenogamy

(a) Mention any four strategies adopted by flowering plants to prevent self- pollination. (b) Why is geitonogamy also referred to as genetical autogamy?

(a) Mention any four strategies adopted by flowering plants to prevent self- pollination. (b) Why is geitonogamy also referred to as genetical autogamy?

A dioecious plant has

Non-flowering plants belongs to :

A flowering plant called Everlasting is

DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers
  1. A dioecious flowering plant prevents both

    Text Solution

    |

  2. A structure present in the ovule as well as eggs of birds is

    Text Solution

    |

  3. A plant in which fertilization occurs after the shedding of seed is

    Text Solution

    |

  4. In ovule, exostome is

    Text Solution

    |

  5. Group of specialized thickened nucellar cells between embryo sac and c...

    Text Solution

    |

  6. Hypostase is meant for providing

    Text Solution

    |

  7. A group of specialised nucellar cells between embryo sac and micropyle...

    Text Solution

    |

  8. Sasa paniculata contains a large number of antipodal cells. The number...

    Text Solution

    |

  9. Antipodal cells enlarge tremendously in (a) Sasa (b) Caltha (c) Ac...

    Text Solution

    |

  10. Which one develops from funicle of base of ovule? (a) Sarcotesta (b) ...

    Text Solution

    |

  11. Which one develops from exostome

    Text Solution

    |

  12. In tenuinucellate ovules, the nucellus may break down. The nourishment...

    Text Solution

    |

  13. Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...

    Text Solution

    |

  14. Middle layers of pollen sac wall are absent in

    Text Solution

    |

  15. Growth of pollen tube is

    Text Solution

    |

  16. The apical growing region of pollen tube is called

    Text Solution

    |

  17. Functional part of pollen tube is separated from the rest by

    Text Solution

    |

  18. Pollen tube cytoplasm is like any other living cell in showing (a) Cal...

    Text Solution

    |

  19. Male nucleus fuses with female nucleus during fertilization in Angiosp...

    Text Solution

    |

  20. Which one is true of male gamete of angiosperms

    Text Solution

    |

  21. Heterofertilization is

    Text Solution

    |