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Biology, 11.03.2020 07:25 AceTest

14. Consider the experiments done to demonstrate positive phototropism in coleoptiles. (4)
a. Which experiment proves that top of the plant is necessary for the phototropic response, and
how was this proven?
b. Which experiment proves that the phototropic response is controlled by a chemical, and how
was this proven?

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14. Consider the experiments done to demonstrate positive phototropism in coleoptiles. (4)
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