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Differention of shoot is controlled by...

Differention of shoot is controlled by

A

high gibberellin- cytokinin ratio

B

high auxin-cytokinin ratio

C

high cytokinin- auxin ratio

D

high gibberellin- auxin ratio

Text Solution

Verified by Experts

The correct Answer is:
C
Ratio of cytokinins to auxins controls differentiation. If both of these are present in equal quantities, the cells divide but fail to differentiate. If there is more cytokinin than auxin, shoot buds develop. If there is more auxin than cytokinin, roots develop
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-Plant Growth and Development -Exercise
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  2. One set of a plant was grown at 12 hours day and 12 hours night period...

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  4. Plants deficient of element zinc, show its effect on the biosynthesis ...

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  5. Hormone responsible for ageing is

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  6. Which one prevents premature fall of fruit ?

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  7. Hormone that breaks dormancy of seeds/potato tuber is

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  8. Which of the folloewing is a long day plant

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  9. Protienaceous pigment which is the centre of the activities concerned ...

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  10. Which method makes the seed coat permeable and allows growth of embryo...

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  11. What reason will you assign for coconut milk used in tissue culture?

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  12. Geocarpic fruits are produced by

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  13. The closing and opening of the leaves of Mimosa pudica is due to

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  14. Which combination of gases is suitable for fruit ripending

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  15. The response of different organisms to environmental rhythms of light ...

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  16. A plant hormone used for inducing morphogenesis in plant tissure is ...

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  17. The pigment which mainly absorbs red and far-red radiation in plants, ...

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  18. Gibberellins induce

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  19. What will be the effect on photochrome in a plant subjected to contino...

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  20. If a tree flowers thrice in a year (October, January and july) in noth...

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