The bioassay of auxin is

⇦

⇨

The bioassay of auxin is

Options

(a) Avena curvature test
(b) callus formation
(c) culture of fungus
(d) seed dormancy

Correct Answer:

Avena curvature test

Explanation:

Bioassay is a testing of biological activity like growth response of a substance by employing plant part. Avena curvature test is a bioassay for examining the activity of auxins. It is based upon experiments of F.W.Went. 10° curvature is produced by auxin concentration of 150 mg/lit at 25⁰ C and 90% relative humidity. It can measure auxin up to 300 mg/lit. Auxin from shoot tip or any other plant organ is allowed to diffuse in a standard size agar block. 15 -30 mm long oat coleoptile grown in dark is held ve

Related Questions:

1. Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?
2. The outermost sheath of connective tissue that surrounds a skeletal muscle is
3. In the light of carrier concept the transport of ion across the membrane is
4. Pacinian corpuscles are abundantly found in
5. Which is common to multicellular fungi, filamentous algae and protonema of mosses

Topics: Plant Growth and Development (126)
Subject: Biology (4253)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends