Home
Class 12
BIOLOGY
Cleistogamy doesn't impose high cost on ...

Cleistogamy doesn't impose high cost on plants for pollination but still is restricted to few plant species only because

A

It shows low yield of plants

B

It restricts genetic variability in plants

C

Absence of beautiful flowers

D

Absence of pollinators

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise Examplle|19 Videos
  • STRUCTURAL ORGANISATION IN ANIMALS (CONTD . . .) (ANIMAL MORPHOLOGY)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D)|10 Videos
  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|619 Videos

Similar Questions

Explore conceptually related problems

Some flowers of common pancy do not require pollinators for their pollination but still this property is not very useful for plants because

Pollination is essential in angiospermic plants because

Find odd one w.r.t. plants pollinated by biotic agents

Which of the following statements are true? If false, correct them: (a) Boron deficiency leads to stout axis. (b) Every mineral element that is present in a cell is needed by the cell. (c) Nitrogen as a nutrient element, is highly immobile in the plants. (d) It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities.

Pollination between flowers borne on two different plants of the same species refers to:

Assertion: Entomophilous plants produce less pollen when compared to anemophilous plants. Reason: The wastage of pollen is reduced to the minimum in entomophilous plants because of directional pollination.

Assertion : Young leaves in Poinsettia are brightly coloured to attract pollinator and achieve pollination . Reason : It is only color which can attract the pollinator on all plants .

The evolution of the flowers of a plant and its pollinator species tightly linked with one another is termed

Assertion: Genetic engineering is helpful in development of high yielding varieties of plant as it introduces new genes into host plants Reason :Disease resistance and high yielding varieties can only be produced through genetic engineering

A plant with red flowers was crossed with another plant of the same species with white flowers. The offspring thus obtained were 60 plants all with only pink flowers. On selfing, these plants produced 60 plants with red flowers. Explain the genetic principle behind these results

AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
  1. Cleistogamy doesn't impose high cost on plants for pollination but sti...

    Text Solution

    |

  2. Pollen grains are shed at two-celled stage in angiosperms.Find the cor...

    Text Solution

    |

  3. An aquatic plant which is pollinated by water is

    Text Solution

    |

  4. An angiospermic plant has the following charecteristics.Identify the t...

    Text Solution

    |

  5. Select the correct statements about apomitic seeds.a)these seeds are p...

    Text Solution

    |

  6. Paethenocarpic fruits

    Text Solution

    |

  7. A typical angiospermic seed consist of all,except

    Text Solution

    |

  8. Persistent nucellus in the seeds of black pepper is called

    Text Solution

    |

  9. Both autogamy and geitonogamy are prevented in

    Text Solution

    |

  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

    Text Solution

    |

  11. Generative cell of pollen grain

    Text Solution

    |

  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

    Text Solution

    |

  13. The innermost layer of anther wall whose cells nourish the developing ...

    Text Solution

    |

  14. If the chromosome number in a meiotically produced gamete of a plant i...

    Text Solution

    |

  15. Male gametes require water to reach the female gamete in

    Text Solution

    |

  16. China rose is

    Text Solution

    |

  17. Heterogametes are found in

    Text Solution

    |

  18. In flowering plants,which of the following structures is present befor...

    Text Solution

    |

  19. Pollen grains are the carrier of male gametes in

    Text Solution

    |

  20. Syngamy does not occur outside the body of the organism in

    Text Solution

    |