Home
Class 12
BIOLOGY
If the integuments are pierced by the po...

If the integuments are pierced by the pollen tube during fertilization it is…..
(A) porogamy
(B) mesogamy
(C) chalazogamy
(D) siphonogamy

A

porogamy

B

mesogamy

C

chalazogamy

D

siphonogamy

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar)(Long Answer Type Question)|3 Videos

  • REPRODUCTIVE HEALTH

    KUMAR PRAKASHAN|Exercise Section - F Multiple Choice Questions (MCQs)|102 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION -F (Multiple Choice Questions (MCQs)) (MCQs Asked In Competition Exam)|63 Videos

Similar Questions

Explore conceptually related problems

Transfer of pollen to the stigma of another flower of the same plant is (A) allogamy (B) xenogamy (C) autogarmy (D) geitonogamy

In which plants motile ciliated spores are produced during spore formation ? (A) Chlamydomonas (B) Spirogyra (C) Dictyota (D) Fucus

How many male gametes are released by pollen tube near the egg cell in angiosperms ? (A) One (B) Two (C) Three (D) Four

The oospore derived from double fertilization in angiosperms is (A) haploid (B) Diploid (C) Triploid (D) polypoid

Sporulation occurs during unfavorable condition in ……….. (A) Amoeba (B) Euglena (C) Penicillium (D) Plasmodium

External fertilization is seen in (A) bony fishes (B) frogs (C) Both (A) and (B) (D) none of the above

Which of the following indicates the development of ovary into fruits without the stimulation of fertilization ? (A) Incompatibility (B) Parthenogenesis (C) Polyembryony (D) Parthenocarpy

To avoid self-pollination and provide contrivance for cross pollination, the pollen grains of some flowers have no fertilizing effect on the stigma of the same flower but causes death. What is this condition called? (A) Homogamy (B) Dicliny (C) Self sterility (D) dichogamy

In…..female flowers remais submerged in water and the pollen grains are released inside the water (A) vallisneria (B) marine grasses (C) hydrilla (D) viola

In a flowering plant the pollen tube first arrives in (A) egg (B) antipodal cell (C) a synergid (D) central cell

KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. In angiosperm the resultant of secondary nucleus with male gamete has…...

    Text Solution

    |

  2. Pick up correct statement for pollen tube (A) It is composed of three...

    Text Solution

    |

  3. If the integuments are pierced by the pollen tube during fertilization...

    Text Solution

    |

  4. The oospore derived from double fertilization in angiosperms is (A) h...

    Text Solution

    |

  5. Ovule is comparable to (A) megasporangium (B) microsporangium (C)...

    Text Solution

    |

  6. The endosperm of angiosperms is developed from (A) antipodals (B) z...

    Text Solution

    |

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

    Text Solution

    |

  8. Double fertilization means (A) fusion of male gamete with antipodal c...

    Text Solution

    |

  9. Self-pollination occur between stamens and carpels of (A) same flower...

    Text Solution

    |

  10. What is meant by emasculation? (A) Pollination between flower of same...

    Text Solution

    |

  11. The term used when anther and stigmas of intersexual or perfect flower...

    Text Solution

    |

  12. Self pollination is prevented by (A) Dichogamy (B) self sterility ...

    Text Solution

    |

  13. Pollination which can occur in same plant is favoured by (A) herkogam...

    Text Solution

    |

  14. ……favours autogamy (A) Dicliny (B) Dichogamy (C) Hekrogamy (D) ...

    Text Solution

    |

  15. The flower may be of two or more types with regard to the length of st...

    Text Solution

    |

  16. Allogamy has to be always performed with the help of (A) external age...

    Text Solution

    |

  17. Allogamy is best favoured by (A) cleistogamy (B) dicliny (C) homo...

    Text Solution

    |

  18. Allogamy is very useful because it results in (A) Formation of male ...

    Text Solution

    |

  19. Another term for cross-pollination is (A) allogamy (B) xenogamy ...

    Text Solution

    |

  20. The most exceptional feature of zoophilous flower is (A) scented havi...

    Text Solution

    |