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