Home
Class 12
BIOLOGY
Unisexuality of flowers prevents...

Unisexuality of flowers prevents

A

Geitonogamy but not xenogamy

B

Autogamy and geitonogamy

C

Autogamy but not geitonogamy

D

Both geitonogamy and xenogamy.

Text Solution

Verified by Experts

The correct Answer is:
C
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

Name the inflorescence in which also unisexual flowers are present :-

Read the following statements and select the correct option. Statement 1 : Unisexual flowers are either staminate flowers or pistillate flowers. Statement 2: Both monoeious and dioeious plants have unisexual flowers.

A unisexual flowering plant containing either only staminate or only pistillate flowers prevents both

Assertion: Insects visit flowers to gather honey. Reason: Attraction of flowers prevents the insects from damaging other parts.

Which among the following statements are true for unisexual flowers? (i) They possess both stamen and pistil. (ii) They possess either stamen or pistil. (iii) They exhibit cross pollination. (iv) Unisexual flowers possessing only stamens cannot produce fruits.

Sessile unisexual and neuter flowers are arranged acropetally in the inflorescence of

State true or false : (i) Unisexual flowers occur in china rose (ii) Monoecious condition in lower plants is absent.

Read the following statements A to D :- A. A typical anther of angiosperm is dithecous. B. Egg apparatus consists of two antipodals and one egg cell. C. Cleistogamous flowers are invariably autogamous. D. If a female parent produces unisexual flowers, there is no need for emasculation. How many of the above statements are right?

Linkage prevents

spike with unisexual flowers/catkin occurs in

DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers
  1. Unisexuality of flowers prevents

    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

    |