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Induction of cell division activity and ...

Induction of cell division activity and delay in senescence is caused by

A

cytokinins

B

auxins

C

GA

D

CoA

Text Solution

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The correct Answer is:
A
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[A] : Cytokinins help in the retention of chloro- phyll and delay senescence in leaves. [R]: Cytokinins only stimulate root initiation

Identify the correct statement regarding cytokinins. I. Cytokinins induce cell division . II. Cytokinins delay the onset of senescence. III. Cytokinins initiate chloroplast formation in the presence of light . IV. Application of Cytokinins reduces the apical dominance and stimulates the growth of lateral buds.

A2Z-PLANT GROWTH AND DEVELOPMENT-Section C : Previous Years' Examination Questions (AIIMS Questions )
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  2. Curling of tendrils is due to

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  3. Bud dormancy is induced by

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  4. Pruning of plants promotes branchin becaues the axillary buds get sen...

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  5. Gibberellins can promote seed germination because of their influence o...

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  6. Avena curvature test is a bioassay for examining the activity of

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  7. Bean seeds were planted and put on a sunny windowsill. As the plants g...

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  8. Coconut water is rich in

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  9. Gibberellins can promote seed germination because of their influence o...

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  10. Read the given statements and identify the plant hormones X,Y and Z. ...

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  11. Gibberellins can promote seed germination because of their influence o...

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  12. Match the column and select the correct option: (2016)

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  13. Which of the following sets contain natural hormone?

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  14. Assertion: Photomodulation of howering is a phytochrome regulated proc...

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  15. Assertion: Vemalization is acceleration of subsequent llowenng by low ...

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  16. Assertion: Dark period play more important part in flowering than ligh...

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  17. Assertion.Plant growth regulators are very important for plant growth ...

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  18. Assertion : A correct concentration of auxin and cytokinin is required...

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  19. Assertion : Auxins help to prevent fruits and leaves droo at early sta...

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