Dwarf plants can be made taller by (a) gibberellins (b) auxin (c) cytokinin (d) vernalin
Option A. Gibberellin is a plant hormone which is responsible for stem elongation by promoting cell division and elongation. They are responsible for increased internodal length in a plant. Auxins cause cell elongation and cell differentiation while cytokinins promote only cell division. Phycobilins are pigments found in cyanobacteria which capture the light energy for photosynthesis in them.
