Answer
Explanation on Plant Growth and Development Statements
(A) Parthenocarpy can be induced by auxins.
✔ True – Auxins can induce parthenocarpy, which is the development of seedless fruits without fertilization. This technique is used to produce seedless fruits like bananas and tomatoes.
✔ True – Auxins can induce parthenocarpy, which is the development of seedless fruits without fertilization. This technique is used to produce seedless fruits like bananas and tomatoes.
(B) Plant growth regulators can be involved in promotion as well as inhibition of growth.
✔ True – Plant growth regulators (PGRs) such as auxins, gibberellins, cytokinins, ethylene, and abscisic acid can act as both growth promoters and inhibitors depending on their type and function.
✔ True – Plant growth regulators (PGRs) such as auxins, gibberellins, cytokinins, ethylene, and abscisic acid can act as both growth promoters and inhibitors depending on their type and function.
(C) Dedifferentiation is a pre-requisite for re-differentiation.
✔ True – Dedifferentiation is when specialized cells revert to a less specialized state, allowing them to divide again. This is necessary for re-differentiation into new cell types.
✔ True – Dedifferentiation is when specialized cells revert to a less specialized state, allowing them to divide again. This is necessary for re-differentiation into new cell types.
(D) Abscisic acid is a plant growth promoter.
✘ False – Abscisic acid (ABA) is actually a growth inhibitor. It is involved in stress responses, seed dormancy, and inhibition of germination.
✘ False – Abscisic acid (ABA) is actually a growth inhibitor. It is involved in stress responses, seed dormancy, and inhibition of germination.
(E) Apical dominance promotes the growth of lateral buds.
✘ False – Apical dominance suppresses the growth of lateral buds due to the action of auxins produced by the apical bud.
✘ False – Apical dominance suppresses the growth of lateral buds due to the action of auxins produced by the apical bud.
✅ Correct Statements:
A, B, and C only
Correct Option: (1) A, B, C only