Question

Consider the following statements. Apical dominance in plants
I. Allows growth of terminal bud.
II. Retards the growth of lateral buds.
III. Enhances the growth of lateral buds.
Which of these statements is/are correct?

• A. I alone
• B. II alone
• C. III alone
• D. Both I and II

Answer 1

Answer: (D)

Both I and II

Apical bud is also called terminal bud that is present at the tip of the shoot. The condition in which growth of the shoot apex inhibits the lateral growth of the shoot or lateral buds is called as apical dominance. This is due to the presence of auxin at root tips. The lateral buds are more sensitive to auxin than the apical bud. Thus the correct answer is option D.