Q53 / 200 · JIPMER 2008 · Botany

Apical dominance is caused by

  • Correct answer
    A
    auxin
  • B
    gibberellin
  • C
    kinetin
  • D
    ABA

Solution

In many plants, as the apical bud grows, the growth of lower axillary buds is suppressed. Removal of apical bud results in the growth of lower buds. The auxin (IAA) of the terminal bud inhibits the growth of lateral buds. This phenomenon is known as apical dominance.

Hence, the correct answer is option: 'A'.

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