Home
Class 12
BIOLOGY
In an embryo sac, the cells that degener...

In an embryo sac, the cells that degenerate after fertilisation are

A

synergids and primary endosperm cell

B

synergids and antipodals

C

antipodals and primary endosperm cell

D

egg and antipodals

Text Solution

Verified by Experts

The correct Answer is:
B
In unfertilised embryo sac, the antipodals and synergids are distinctly present at chalazal end and micropylar end respectively while in fertilised embryo sac antipodals and synergids gradually degenerate after the formation of zygote. (Also, refer to Q. 14)
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTIVE HEALTH

    NCERT EXEMPLAR|Exercise Reproductive Health|37 Videos

  • STRATEGIES FOR ENHANCMENT IN FOOD PRODUCTION

    NCERT EXEMPLAR|Exercise Strategies For Enhancment In Food Production|77 Videos

Similar Questions

Explore conceptually related problems

An embryo sac has:

Embryo sac is

Embryo sac is

In an embryo sac, the largest cell is

Which of the cells in the Polygonum type of embryo sac which degenerate after fertilization

The number of cells in the Polygonum type of embryo sac which degenerate after fertilization

Which of the following cells of embryo sac degenerate after fertilisation in angiosperms ?

In polygonum type of embryo sac, the cells are

Ina mature embryo sac the central cell is

NCERT EXEMPLAR-SEXUAL REPRODUCTION IN FIOWERING PIANTS-Sexual Reproduction In Fiowering Piants
  1. From among the situations given below, choose the one that prevents bo...

    Text Solution

    |

  2. In a fertilised embryo sac, the haploid, diploid and triploid structur...

    Text Solution

    |

  3. In an embryo sac, the cells that degenerate after fertilisation are

    Text Solution

    |

  4. While planning for an articifical hybridisation programmme involving d...

    Text Solution

    |

  5. In the embryos of a typical dicot and a grass, true homologous structu...

    Text Solution

    |

  6. The phenomenon observed in some plants wherein parts of the sexual ap...

    Text Solution

    |

  7. In a flower, if the megaspore mother cell forms magaspores without und...

    Text Solution

    |

  8. The phenomenon wherein, the ovary develops into a fruit without fertil...

    Text Solution

    |

  9. Name the component cells of the 'egg-apparatus' in an embryo sac.

    Text Solution

    |

  10. Name the part of gynoecium that determines the compatible nature of po...

    Text Solution

    |

  11. Name the common function that cotyledons and nucellus perform.

    Text Solution

    |

  12. Complete the following flow chart

    Text Solution

    |

  13. Indicate the stages where meiosis and mitosis occur (1, 2 or 3 ) in th...

    Text Solution

    |

  14. In the diagram given below, show the path of a pollen tube from the pl...

    Text Solution

    |

  15. Name the parts of pistil which develop into fruit and seeds.

    Text Solution

    |

  16. In a case of polyembryony if an embryo develops from the synergid and ...

    Text Solution

    |

  17. Can an unfertilised, apomictic embryo sac give rise to diploid embryo ...

    Text Solution

    |

  18. The three cells found in a pollen grain when it is shed at 3-celled st...

    Text Solution

    |

  19. What is self-incompatibility ?

    Text Solution

    |

  20. Name the type of pollination in self-incompatible plants.

    Text Solution

    |