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The first natural cytokinin of plants is...

The first natural cytokinin of plants is

A

zeatin

B

kinetin

C

dihydrooxyzeatin

D

riboxylzeatin

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The correct Answer is:
A
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[A]: Senescence is induced by the applica- tion of cytokinin in plants. [R]: Cytokinin promotes the breakdown of chlorophyll, proteins and nucleic acid.

TRUEMAN BIOLOGY-PLANT GROWTH AND DEVELOPMENT AND PLANT MOVEMENTS -MULTIPLE CHOICE QUESTIONS
  1. Hormone that breaks dormancy of seeds/potato tuber is 1. IAA 2. ABA ...

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  2. The first cytokinin was isolated by

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  3. The first natural cytokinin of plants is

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

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

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

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  7. The hormones which regulate phloem transport are

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  8. Cytokinin synthesis is maximum in

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  9. Name the hormone which stimulates transverse or isodiametric growth

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  10. Major precursor of ethylene production in plants is

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

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  12. Abscisic acid is mostly found in

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

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  14. Closure of stomata' is brought about by

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  15. A natural growth regulator is

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  16. Abscisic acid controls/ promotes

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  17. Who first suggested presence of growth regulatory chemicals in plants ...

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  18. Banana is natural parthenocarpic fruit due to

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  19. Low concentraion of auxin inhibits growth in

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  20. To secure a good crop of tea leaves from a single healthy plant, the g...

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