Elongation and thickening of sclerenchyma cells are an example of ______

Which of the following phenomenon leads to the specification of functions of dedifferentiated cells upon maturity?

ABA is a derivative of adenine purine.

Which of the following is a terpene derivative?

The root and shoot apex of a plant represent which phase of the growth?

The hormone which can replace vernalization is ___

Which of the following processes takes place in (C)?

Which of the following is not an essential element for the growth of the plant?