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Assertion :- Growth regulators are intri...

Assertion :- Growth regulators are intrinsic and intercellular factors which controls development of plant.
Reason:- Growth regulators are produced by plant cell itself and work in cells other than those in which they synthesise.

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

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The correct Answer is:
A
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MOTION-PLANT GROWTH AND DEVELOPMENT-Exercise - 4
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  2. Assertion :- Oxygen is compulsory for growth Reason:- Oxygen is mus...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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