Question

Which of the following is the most studied form of gibberellic acid?

• A. thigmotropic movement
• B. geotropic movement
• C. GA₃
• D. GA4

Answer 1

The correct option is C

GA₃

Gibberellins are growth hormones that stimulate cell elongation and causes plants to grow taller. Gibberellins also have a role in other plant processes, such as stem elongation, initiate germination, flowering, and promote fruit growth, induces parthenocarpy and break seed dormancy. Different forms of gibberellins have been reported from different plants. These are named as GA₁, GA₂, GA₃ and so on. GA₃ is the most studied form among these.