Apical Dominance and Gravitropism · NCERT Biology

Which statement about auxin action is correct?

  1. Grow straight without any bending
  2. Show phototropism response only
  3. Bend upward by gravitropism
  4. Stop all growth activity
Show answer and explanation

Correct answer: Bend upward by gravitropism

Even in the absence of light, gravity influences growth direction. The shoot bends upward due to negative gravitropism.

Difficulty: Medium Question 17 of 20

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