Read the following statements on plant growth and development.

Question

Read the following statements on plant growth and development.

(A) Parthenocarpy can be induced by auxins. (B) Plant growth regulators can be involved in promotion as well as inhibition of growth. (C) Dedifferentiation is a pre-requisite for re-differentiation. (D) Abscisic acid is a plant growth promoter. (E) Apical dominance promotes the growth of lateral buds.

Choose the correct answer from the options given below:

1. A. A, B, C only (Correct answer)
2. B. A, C, E only
3. C. A, D, E only
4. D. B, D, E only

Correct Answer

Option A — A, B, C only

Detailed Solution & Explanation

The correct answer is A, B, C only.

Key Points

• A, B and C are correct: auxins induce parthenocarpy; PGRs can both promote and inhibit growth; dedifferentiation precedes re-differentiation.
• D is wrong — abscisic acid is a growth inhibitor. E is wrong — apical dominance suppresses (not promotes) the growth of lateral buds.