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Plant Growth and Development question

2010 · Q45
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Plant Growth and Development question

2010 · Q45

NEETBiologyPlant Growth and DevelopmentMCQ+4 / −1
Phototropic curvature is the result of uneven distribution of
  1. A
    gibberellin
  2. B
    phytochrome
  3. C
    cytokinins
  4. D
    auxin.
View written solutionFree

Correct answer: D

Phototrophic curvature is the result of uneven distribution of auxin. The experiments conducted by Charles Darwin concluded that the tip of coleoptile of canary grass contain auxin that causes the bending of the entire coleoptile towards the light source.

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