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  • The growth of pollen tube towards the ovule during the pr...
Multiple choice

The growth of pollen tube towards the ovule during the process of fertilisation in a flower is an example of

  1. negative chemotropism

  2. positive chemotropism

  3. positive hydrotropism

  4. negative hydrotropism

  5. positive thigmotropism

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B Correct answer
Explanation

This is the correct option. 

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