MCQs Botany-29 Posted on April 3, 2025August 30, 2025Author agropublishers 0 1. Photonasty is a ———- plant movement that occurs in response to light intensity Directional Non-directional None of these 2. Which of the following describes a symbiotic association between the hyphae of a fungus and the roots of a plant? Mycorrhizae Actinomycetes Parasite Bryophyte 3. Select the correct counterpart that has the same relation with the given word: Mountain : Hill :: Tree : __________? Leaf Shrub Ecosystem Forest 4. Which of the following is NOT typically represented on a climograph? Wind speed patterns Monthly temperature averages Monthly precipitation totals Seasonal climate trends 5. Which phytohormone plays the most significant role in regulating plant height by promoting stem elongation? Abscisic acid Gibberellin Ethylene Cytokinin 6. Which phytohormone is primarily responsible for inducing seed dormancy and inhibiting germination under unfavorable conditions? Gibberellin Cytokinin Abscisic acid Ethylene 7. Manchester is known for ___________ due to its historical dominance in the textile industry during the Industrial Revolution Woollen Textile Silk Textile Cotton Textile Polyester Textile 8. _____________ play a crucial role in the nitrogen cycle by oxidizing ammonia (NH4+) to nitrite (NO2-) Azotobacter Rhizobium Nitrobacter Nitrosomonas 9. Phytohormone _________ is involved in the induction of “triple response” (reduced elongation, thickened stem, exaggerated curvature) Jasmonic acid Ethylene Brassinosteroids Auxin 10. Based on morphological and molecular evidence, which of these dicotyledonous families is considered the most evolutionarily advanced? Asteraceae (Compositae) Scrophulariaceae Apiaceae (Umbelliferae) Acanthaceae Loading …