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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Identify the correct statements regarding cytokinins. I. Cytokinins induce cell division. II. Cytokinins delay the onset of senescence. III. Cytokinins initiate chloroplast formation in the presence of light. IV. Application of cytokinins reduces the apical dominance and stimulates the growth of lateral buds.

Options

  1. AI, II, III and IV
  2. BI, II and III
  3. CII and IV
  4. DI and III

Correct answer

A. I, II, III and IV

Step-by-step solution

Cytokinins induce cell division. They promote nutrient mobilisation which helps in the delay of leaf senescence. Cytokinins help overcome the apical dominance and in this aspect it is antagonistic to auxin.

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