Assertion (A): Genetically dwarf plants on treatment with gibberellins attain the size of normal plants

Reason(R): Gibberellins cause enormous cell elongation and intermodal length

The correct option is A

Both A $\&$ R are true and R explains A

Gibberellins cause elongation of stem. Genetically dwarf pea and maize plants can be made tall by the application of gibberellins. It acts on the cells in the elongation phase.