Question

Cytokinin and auxin are antagonistic in which of the following function?

• A. Cell division
• B. Phototropism
• C. Apical dominance
• D. Geotropism

Answer 1

The correct option is C Apical dominance

• The main function of Auxin is to promote stem elongation and inhibition of growth of lateral buds to maintain apical dominance.
• It is produced in the stem tips, buds and root tips to promote growth and it also helps to repair wounds in plants.
• The function of cytokinins is to increase the cell division by stimulating the process of mitosis which helps in plant growth and formation of shoots and buds.
• Cytokinins promote sprouting of lateral buds and overcome apical dominance.
• Cytokinin and auxin are antagonistic for apical dominance.
  
• So the correct answer is 'Apical dominance'.