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Auxin Bioassay MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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The Avena curvature is used for bioassay of:
A bioassay means
On which of the following features of auxin, does the Avena curvature test is based?
The bioassay for determining the activity of auxin is
As per the Avena curvature test, at 25oC, the 100 curvature is produced by auxin concentration of
Avena Curvature Test can be used as an accurate bioassay for determining the activity of which of the following phytohormones?
The bioassay of auxin was done on the germinating oat, Avena. Which scientist conducted the experiment?
The transition to flowering in plants requires
Mowing grass lawn facilitates better maintenance because
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Bioassay of Auxins
- Testing of biological activity (like growth) of a substance by using a living material is called the bioassay.
- Auxin bioassay is a quantitative test that measures the effect of auxin at a particular concentration.
Avena Curvature Test:
- This test is based on the experiments done by Went.
- This test is based on the polar transport of auxin in Avena coleoptile.
- The auxin applied on one side of the cut coleoptile stump will diffuse down that side only and will cause that side to grow more resulting in curvature of the coleoptiles.
- Within limits, this curvature is directly proportional to the amount of auxin applied.
- 100 curvature is produced by auxin concentration of 150 micrograms per litre at 250C.
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