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Question

Bioasay for auxin is


A
Dwarf maize test
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B
Avena curvature test
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C
Cell division test
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D
Green leaf test
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Solution

The correct option is B Avena curvature test
Bioassay is a sensitive and specific test that determines the biological activity of hormones by measuring its effect on a specific part of plant material. There are various bioassays to determine the concentration of auxin hormone in plant such as avena coleoptile curvature test, split pea stem curvature test, cress root inhibition test. The Avena curvature test is a bioassay for auxin that measures the angle of curvature of a decapitated coleoptile after placing an agar block containing auxin on one side.
Thus, the correct answer is option B.

Biology

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