Home
Class 12
BIOLOGY
In most plants continuous self pollinati...

In most plants continuous self pollination leads to inbreeding depression while in others certain devices that help to discourage self pollination. Give any four devices.

Promotional Banner

Topper's Solved these Questions

  • SAY 2018 QUESTION PAPER

    MAXIMUM PUBLICATION|Exercise EXAMPLE|4 Videos

  • STRATEGIES FOR ENHACEMENT IN FOOD PRODUCTION

    MAXIMUM PUBLICATION|Exercise EXERCISE|89 Videos

Similar Questions

Explore conceptually related problems

Flowering plants have major devices to discourage self pollination and to increase cross pollination. Point out any four devices.

Self incompatibility and dioecious condition are two devices for discouraging self pollination in plants. Explain the two.

Assertion: Flowering plants have developed many out breeding devices to discourage self-pollination and to encourage cross-pollination. Reason: Continued self-pollination result in inbreeding depression.

A bisexual self pollinating flowering plant has chromosome number 76 in its somatic cells. Give any 2 characteristic of wind pollinated flower .

Many of the flowering plants have developed some devices for discouraging inbreeding. Write any two of them.

Rose is a flower pollinated by insect while in paddy pollination is by wind. Give any three adaptations existing in these plants to facilitate their respective mode of pollination.

Sunflower is pollinated by insects while rice is pollinated by wind. Plants can be self or cross pollinated : write any two mechanisms existing in nature to promote cross pollination

MAXIMUM PUBLICATION-SEXUAL REPRODUCTION IN FOLLOWING PLANTS-EXERCISE
  1. Geitonogamy is a functional cross pollination but not genetically. Jus...

    Text Solution

    |

  2. Wind pollination is common in grasses and water pollination in vallisn...

    Text Solution

    |

  3. In most plants continuous self pollination leads to inbreeding depress...

    Text Solution

    |

  4. The micropyle remains as a small pore in the seed coat. What is its ro...

    Text Solution

    |

  5. Draw the diagram of a typical dicot embryo and label the parts like pl...

    Text Solution

    |

  6. Observe the developmental stages given below and answer the following....

    Text Solution

    |

  7. Observe the developmental stages given below and answer the following....

    Text Solution

    |

  8. Apomictic seeds are important in agriculture. Do you agree? Give reaso...

    Text Solution

    |

  9. Give the technical terms for the following Produce seeds without fer...

    Text Solution

    |

  10. Give the technical terms for the following Persistent nucellus

    Text Solution

    |

  11. Emasculation may not be necessary. Yet bagging is necessary. Justify g...

    Text Solution

    |

  12. Banana is a true fruit and also a parthenocarpic fruit. Justify.

    Text Solution

    |

  13. Arrange the following terms in the correct development sequence : Po...

    Text Solution

    |

  14. Pollen grains of many plants are found to be allergic. Give examples...

    Text Solution

    |

  15. Some peoples live in area are subjected to allergic disease due to pol...

    Text Solution

    |

  16. Typical angiosperm embryo sac is 7 celled and 8 nucleate. This conditi...

    Text Solution

    |

  17. Pollen allergy that causes chronic respiratory disorders in men like a...

    Text Solution

    |

  18. Some pollen grains cannot germinate on stigmatic surface due to the lo...

    Text Solution

    |

  19. Some pollen grains cannot germinate on stigmatic surface due to the lo...

    Text Solution

    |

  20. Pollen tube growth occurs through the stylar region and reach micropyl...

    Text Solution

    |