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F. Went noted that if coleoptile tips we...

F. Went noted that if coleoptile tips were removed and placed on agar for on hour, the agar would produce a bending when placed on one side freshly cut coleoptile stumps. Of what significance is this experiment ?

A

It made possible the isolation and exact identification of auxin

B

It is the basis for quantitative determination of small amounts of growth-promoting substances

C

It supports the hypothesis that IAA is auxin

D

It demonstrated polar movement of auxins.

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A
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