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In a plant the concentration of gibberel...

In a plant the concentration of gibberellins is highest in
1. seeds and young leaves
2. apical buds
3. old leaves and flower buds
4. all the above

A

seeds and young leaves

B

apical buds

C

old leaves and flower buds

D

all the above

Text Solution

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The correct Answer is:
A
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TRUEMAN BIOLOGY-PLANT GROWTH AND DEVELOPMENT AND PLANT MOVEMENTS -MULTIPLE CHOICE QUESTIONS
  1. "" are sprayed on the cotton fields to defoliate and hence facilita...

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  2. The nature of all gibberellins is

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  3. In a plant the concentration of gibberellins is highest in 1. seeds a...

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  4. Dwarfness can be controlled by treating the plant with

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  5. Hormone that breaks dormancy of seeds/potato tuber is 1. IAA 2. ABA ...

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  6. The first cytokinin was isolated by

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  7. The first natural cytokinin of plants is

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  8. Hormone primarily concern with cell division is 1. Ethylene 2. NAA ...

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  9. Morphogenesis is controlled by an interaction between 1. auxins and ...

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  10. The phenomenon of delay of senescence by cytokinin is known as 1. Ri...

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  11. The hormones which regulate phloem transport are

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  12. Cytokinin synthesis is maximum in

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  13. Name the hormone which stimulates transverse or isodiametric growth

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  14. Major precursor of ethylene production in plants is

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  15. Match the items of column I and column II {:("Column I","Column II")...

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  16. Abscisic acid is mostly found in

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  17. Which one of the following is a natural growth inhibitor ?

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  18. Closure of stomata' is brought about by

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  19. A natural growth regulator is

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  20. Abscisic acid controls/ promotes

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