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22/09/2020 7:23 pm
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Growth of pollen tube towards embryo is
(a) geotropism
(b) chemotaxis
(c) phototaxis
(d) thigmotaxis
1 Answer
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22/09/2020 7:24 pm
(b) chemotaxis
Explanation:
Growth of pollen tube towards embryo is chemotaxis due to the stimulus being chemical in nature. The chemical stimulus is supplied in the form of Ca++ ions.