question_answer 21)

  Monocarpic plants are those which   (a) bear flowers with one ovary                                (b) flower once and die (c) bear only one f lower                                              (d) All of these

Answer:

                (c) Gibberellic acid ABA is stress hormone as it induces seed dormancy in plants. Whereas, gibberellic acid breaks down seed dormancy and induces seed germination so, both act opposite to each other, the refer are antagonistic to each other.