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Auxin can be bioassayed by...

Auxin can be bioassayed by

A

Avena coleoptile curvature

B

hydroponics

C

potometer

D

lettuce hypocotyl elongation

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The correct Answer is:
A
Auxin is a phytohormone that is often bioassayed by Avena coleoptile curvature test. The angle of curvatme of a decapitated oat coleoptile .is measured after placing an agar block containing auxin on one side. The ability of auxin to stir:mlate shoot growth is then measured.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-Plant Growth and Development -Exercise
  1. Phytochrome is

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  2. You are given a tissue with its potential for differentiation in an ar...

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  3. Auxin can be bioassayed by

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  4. Dr. F. Went noted that is coleoptile tips were removed and placed on a...

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  5. Which one o f the following plant hormone (phytomone ) Is know as a st...

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  6. A few normal seedlingd of tomato were kept in a dark room. After a few...

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  7. During seed germination, its stored food is mobilised by

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  8. Phototropic curvature is result of uneven distribution of

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  9. Coiling of graden pea tendrils around any support is an example of

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  10. One of the synthetic auxin is

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  11. Which one of the following acids is a derivative of carotenoids?

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  12. Senescence as an active devlopmental cellular process in the growth an...

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  13. Impotance of day length ( photoperiodism ) in flowering of plants was ...

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  14. Opening of floral buds is

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  15. The wavelength of light absorbed by Pr form of phytochrome is

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  16. The hormone which was discovered through ' foolish seedling ' disease ...

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  17. Which one of the following pairs , is not correctly matched

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  18. How does pruning help in making the hedge dense

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  19. An enzyme that can stimulate germination of barley seeds is

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  20. Treatment of seed at low temperature under moist conditions to break i...

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