GATE Plant, Animal and Microbial Biotechnology: Plants: Totipotency, organogenesis, regeneration, growth regulators, tissue and cell suspension culture, secondary metabolites – Previous Year Questions

4 GATE previous year questions on Plants: Totipotency, organogenesis, regeneration, growth regulators, tissue and cell suspension culture, secondary metabolites (Plant, Animal and Microbial Biotechnology, Biotechnology) with answers and explanations, from every paper.

1. GATE 2021 BT Q41 (2 marks, Multiple choice) – Which hormone/function combinations are correct? P abscisic acid—breaks seed dormancy; Q auxin—induces cell division; R ethylene—stimulates fruit…
2. GATE 2023 BT Q29 (1 mark, Multiple choice) – Which one of the following plant growth regulators facilitate adventitious root formation?
3. GATE 2024 BT Q47 (2 marks, Multiple select) – Which of the following is/are considered as biotic elicitor(s) in plant cell culture?
4. GATE 2024 BT Q49 (2 marks, Multiple select) – Which of the following is/are synthetic auxin(s) that does/do NOT occur naturally?