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IAA is derived from or which of the foll...

IAA is derived from or which of the following is involved in the synthesis of a plant hormone IAA ?

A

Tryptophan

B

Tyrosine

C

Phenylalanine

D

None of these

Text Solution

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The correct Answer is:
A
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MODERN PUBLICATION-PLANT GROWTH AND DEVELOPMENT-COMPETITION FILE ( OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS (MCQs):))
  1. IAA is derived from or which of the following is involved in the synth...

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  2. Internodes elongation is due to :

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  3. Apical dominance is due to:

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  4. Gibberellin causes

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  5. Vernalization is done at

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  6. Plants requiring exposure to light for less than the critical photoper...

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  7. Senescence in leaves can be delayed by applying on them :

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  8. Seeds of some plants do not germinate even under favourable conditions...

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  9. Drooping of Tamarind leaves after sunset is

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  10. Period between formative phase and maturation phase of plant growth is

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  11. The pineapple which under natural condition is difficult to blossom ha...

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  12. Which of the following is a gaseous hormone?

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  13. Cholodny-Went theory is connected with

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  14. The hormone present in liquid endosperm is:

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  15. The phyohormone which induces triple respone is

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  16. An example of short day plant is

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  17. Prechilling treatment to break seed dormancy is

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

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  19. Cell elongation in internodal regions of the green plants takes place ...

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

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