Home
Class 12
BIOLOGY
Assertion :- Spraying of gibberellin lea...

Assertion :- Spraying of gibberellin leads to early seed formation in conifers.
Reason:- Gibberellins hastens the maturity period.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PLANT GROWTH AND DEVELOPMENT

    MOTION|Exercise Exercise - 3|28 Videos
  • PHOTOSYNTHESIS IN HIGHER PLANTS

    MOTION|Exercise Exercise - 4 (ASSERTION & REASON QUESTIONS)|33 Videos
  • PLANT KINGDOM

    MOTION|Exercise Check your concepts -1|16 Videos

Similar Questions

Explore conceptually related problems

Assertion: GAS leads to early seed production in conifers. Reason: Spraying juvenile conifers with GAs hastens the maturity period.

The following PGR helps in early seed production in conifers' is

Assertion : Gibberellin is useful in early seed production in conifers. Reason : Ethephon is responsible for early ripening in tomato and apple

How do gibberellins are able to promote seed germination?

Assertion : Gibberellin was first extracted from fungi. Reason: Gibberella fujikuroi is a fungus.

the hormone is responsible for early seed production in conifers and bolting is

What is the role of gibberellins in promotion of seed germination?

What is the role of gibberellins in promotion of seed germination?

Assertion: Life appeared 500 million years after the formation of earth. Reason : There was no atmpshere on early earth.

Gibberellin mediate amylase formation during germination of cereal grains is inhibited by

MOTION-PLANT GROWTH AND DEVELOPMENT-Exercise - 4
  1. Assertion :- Environmental signals such as light and gravity also affe...

    Text Solution

    |

  2. Assertion :- Oxygen is compulsory for growth Reason:- Oxygen is mus...

    Text Solution

    |

  3. Assertion :- The act leading to maturation is known as differentiation...

    Text Solution

    |

  4. Assertion :- Beside growth, differentiation in plants is also open. ...

    Text Solution

    |

  5. Assertion :- Development is a broad and extensive aspect of the life o...

    Text Solution

    |

  6. Assertion :- Buttercup produces two different kind of leaves within th...

    Text Solution

    |

  7. Assertion :- Growth regulators are intrinsic and intercellular factors...

    Text Solution

    |

  8. Assertion :- Auxins help to prevent fruit and leaf drop at early stage...

    Text Solution

    |

  9. Assertion :- 2,4-D is one of the selective weedicide. Reason:- 2,4-...

    Text Solution

    |

  10. Assertion :- GA3 is used to speed up the malting process in brewing in...

    Text Solution

    |

  11. Assertion :- Spraying of gibberellin leads to early seed formation in ...

    Text Solution

    |

  12. Assertion :- Kinetin is synthetic cytokinin. Reason:- Kinetin was o...

    Text Solution

    |

  13. Assertion :- Cytokinins helps in the delay of leaf senescence. Reas...

    Text Solution

    |

  14. Assertion :- Ethylene increases the yield of cucurbits. Reason:- Et...

    Text Solution

    |

  15. Assertion :- ABA is stress hormone. Reason:- ABA causes abscission ...

    Text Solution

    |

  16. Assertion :- In day neutral plants there is no correlation between exp...

    Text Solution

    |

  17. Assertion :- Flowering in plants depends only on a combination of ligh...

    Text Solution

    |

  18. Assertion :- LDPs without leaf are unable to flower. Reason:- Leave...

    Text Solution

    |

  19. Assertion :- Vernalisation prevents precocious reproductive developmen...

    Text Solution

    |

  20. Assertion :- Winter varieties of wheat & rye are planted in autumn not...

    Text Solution

    |